L5p low fuel rail pressure. DO NOT perform the repair listed in this bulletin.

L5p low fuel rail pressure Alliant AP0135 High-Pressure Fuel Pump Installation Kit. Time to start running fuel return tests, injectors/tubes, CP3. Vehicle was running perfect prior to repairs, just had injector P0087 low fuel rail pressure AGAIN!! LB7, 3 - LLY, 1 - LBZ, 2 - LMM, 1 - L5P. LML 2011-2016. Can a P0087 code cause a vehicle to not start? A P0087 code indicates that the fuel rail or system pressure is too low. I hooked up my scanner (Autel DS808) and checked which tests have been completed since DTC clear, it shows the P0191 test has not yet been completed since i last cleared As you see in the picture, we have fuel pressure on the X-axis and fuel volume on the Y-axis. 7L Ford OEM High Pressure Rail Fuel Pipe Sale! $ 312. lift pump weak on volume, check PSI on hwy WOT. 11-20 6. P0191 OBD-II Trouble Code: Fuel Rail Pressure Sensor Circuit Range/Performance Joined the club, out of nowhere threw this code. I started off with a p1093 code thought it was the fuel filter on my fass. I am thinking Fuel Rail Pressure Relief Valve or my return rates on my injectors are high. I have a lml with full dpf delete and have had 2 different times a reduced power message and very erratic fuel pressure at idle. 6 engine. This the sensor part number 13516495 Fuel rail pressure sensor (at top left rear of engine)? GM Mechanic: Brian PJ. Desired fuel rail pressure is lower than what sensors are showing Is the big brass schrader valve at the top front of the engine low pressure or high pressure (rail pressure) fuel tap? She ran yesterday with what seemed to be good rail pressure (4K-5K psi at an idle and 18K+ psi under light load) but this morning it refuses to start :help. Description Additional information Description. View Details. 1 - LB7, 3 - LLY, 1 - LBZ, 2 - LMM, 1 - L5P. Check and replace the fuel filter if it is clogged and restricting fuel flow. CUSTOM DURAMAX PARTS. When your Duramax engine displays the P0087 code, it means there’s an issue with the fuel rail pressure. In turn, the engine receives better I don't think it is my CP3 going bad. INJECTORS, FUEL RAILS, HIGH PRESSURE, LOW PRESSURE PUMP AND DPF RECENTLY REPLACED. I am mostly inexperienced with diesels and especially duramaxs. $359. Ran good and strong during the check out and 4 hour trip home, but 30 minutes into the start of a 1200 mile RV relocation trip, had the low fuel pressure limp mode experience like you did. OEM # 12686810. tried re-setting DIC filter setting - no start, cleared code (low fuel rail pressure) with programmer - no start, flagged down tow/service truck, changed filter on hiway 2018 L5P P0191 Fuel Rail Pressure Sensor Performance help . Inspect the fuel rail pressure sensor: The next step is to inspect the fuel rail pressure sensor. Learn More. Usually Ships in 1-3 Days. Using my Idash, I monitored my lift pump pressure and noticed that on down grade runs under compression braking my lift pump pressure was dropping to 30-40 psi, where it should be running 58-60. SKU: 19352068; Item #: 19352068; Brand: GM; Condition: New Categories. 2017-2022 L5P Fuel Pressure Regulator 2003-2018 Cummins FPR 2014-2015 Chevy Cruze FPR 2014-2015 Chevy Cruze High side regulator 2011-2016 LML High side regulator on the HP rail 2011-2016 LML Duramax alternator signal 2001-2016 Durmax FPR 2004. Get the latest fuel system upgrades shipped free. It pops up when the Power Control Module (PCM) receives an erratic signal voltage from the fuel pressure sensor. Fits: 2017-2023 GM/Duramax Sensor Location: Front Passenger Side Fuel Rail Sensor Location: Front Passenger Side Fuel Rail . They also found metal shavings in the fuel filter. Thoughts? Sierra 2500HD/ L5P 3500HD 2019 2020 Involved Region or Country North America, Middle East, Israel, Palestine Condition • P0087: Fuel Rail Low Pressure • P0089: Fuel Pressure Regulator 1 Performance • P0191: Fuel Rail Pressure Sensor 1 Performance • P026C: Injection Quantity Too Low • P026D: Injection Quantity Too High Since receiving the new Derringer harness from Banks, no more rail pressure issues, but all of the sudden I started having random low fuel lift pump codes. 2002 Silverado 2500HD with LB7. Thanks in advanced hopefully someone can give me some knowledge sure would be appreciated . Fuel pressure will go to about 28,000 psi or so when it drops off. P0087:00 - Fuel rail low pressure P11DC:00 - NOx sensor 2 P128E:00 - Fuel rail pressure performance A friend recommended changing the high-pressure fuel pump, the fuel filter, and fuel pressure The Stealth Performance Module is the perfect addition to your Chevy/GMC Duramax L5P (2025) diesel truck. This connector and pigtail is for the fuel pressure 0281006325 Fuel Injection Fuel Rail Pressure Sensor Replace Bosch High Pressure Sensor 04-05 6. 00 shaped 3/8 hose-- remove the hose from the fuel rail-- and plug the hose. If you start the truck and it Low rail pressure is one of the most common cause of a limp mode in the 2001 – 2010 6. 2017+ GM 6. Desired is at 6,000 ish. This time it shot code P0463 (Fuel Level Sensor Circuit High Input). What Is Code P018C? P018C is an OBD II fault code that stands for “Fuel pressure sensor “B” Circuit Low”. $59. Sounds a lot like the old Cummins VP44 issue. Leave a Reply Cancel reply. Typical causes of low fuel rail pressure codes are: Leaking lines from tank to fuel filter (should be negated by a functioning lift pump) Clogged fuel filter (should be negated if you're changing them regularly) 06 LBZ 2500 350,000mi 09 LMM 3500 Cutaway 700,000mi 22 L5P 3500 DRW. Pulsewidth is the certain point these two axis intersect, the duration at which how long the injector stays open and sprays fuel in the cylinder. For example P1093 or P0087 (low fuel rail pressure during power enrichment). A little less than ideal, but suspect this is due to all the fuel washing oil away from cylinders. 1. I'm just wondering if that's normal or not, the truck starts right up after replacing the tank pump but idk if itll effect longevity since it needs to pressurize the low side system every time it starts up. The fuel rail pressure is crucial for ensuring the proper amount of fuel is delivered to the engine for combustion. Make sure that the sensor is properly installed and there are no loose connections. 11-19 Dodge 6. Diesel Particulate Filter Diagnosis. When a 6. Truck has ~276,000 miles and a Kennedy lift pump. AirLift LoadLifter 7500 XL 2019 Arctic Fox 27-5L I'm having trouble finding any information/diagrams on the location of the fuel rail pressure sensor. Took it to chev dealer & said #1 injector was low but in spec so they replaced it. 9 L VW TDI; After replacing the fuel pressure relief valve I rechecked rail pressure. Sent from AutoGuide. CP3 fuel output volume test. Now attach a 3/8 hose to the fuel rail nipple, and stick the end in a bottle. When scan tool parameter Deceleration Fuel Cut Off is active, the fuel rail pressure should not deviate more than 2 MPa (290 PSI) from a calculated setpoint. I have removed the cold air pipe and its still not visible. Shop 920-361-7700. Truck returned 500 miles , same code freeze frame shows a difference sensor 1 at 12748 psi, sensor 2 9456, code sets at a difference of 3046 psi. Fitment: Fuel Rail Pressure Sensor Pigtail Compatible with 2017-24 Chevy and GM Machined from heat-treated stainless steel, these fittings help maintain fuel rail pressure during heavy engine load conditions. 6L Duramax. Test the fuel rail pressure: Use a fuel pressure gauge to test the fuel rail pressure. Something to keep in mind is the factory fuel filter has a differential burst pressure of 90psi and the pressure sensor for the low pressure side that controls the lift pump is after the filter. Overlay harness was installed previous at a dealer. At idle, when the FCA was unplugged, the pressure jumped to 26,500 psi then settled at 24,800. 08-10 6. Home. Will not happen while driving, only when you start the truck. I carefully cracked a line on the common rail and yep, it isn't 6000 psi. Again, since 2001, they've been in bed with Bosch to This L5P fuel rail tester cap tool is a "must have" for anyone who works on newer Duramax common rail fuel systems. 6 L5P, 17-22 Canyon & Colorado 2. Using a scan tool, fuel rail pressure was ~155psi at rest. L5P p0087 code!! Tags fuel fuel pressure to low. Checked connector and added dielectric grease . Login to view prices. com Free App -13 Silverado 2500HD CCSB the tolerances in the rail-pressure diagnostics that the ECM runs are pretty tight. Reactions: cfell. 0L LM2 (2020-2023) 2. Caused by fuel leakage at some point in the fuel system. 24. 5,987 Satisfied Customers. Brian PJ. 8L LWN (2016 - 2022) Eliminate Low Fuel Pressure caused by Leaking Relief High fuel rail pressure Duramax L5P. Fuel filter is brand new. Your email . 2017-2025- L5P VIN Code Y - Fuel System - OEM Fuel System; OEM Fuel System; Shipping Information. Details Pretty sure this is last GM truck for me , now my 19 high country dually lost oil pressure at 65,058 miles 16 months old, been serviced every 10,000 or more often and stranded me twice now, this time really bad area and chevy road service left me on the side of the road for 6 hours, paid the tow and now dealer said can't even diagnose till end of the week and could 17-23 6. 6L Duramax L5P Fuel Rail Pressure Sensor quantity. --DDM tuning HID's in Low and During cranking fuel rail pressure builds up quick, well past 50 Mpa, and follows right along with the desired rail pressure. Fits: 2017-2023 GM/Duramax Includes: Fuel Pressure Relief Valve on the rear of driver's side fuel rail. The PPE valves eliminate the potential low pressure DTC codes P1093 or P0087 (during power enrichment) caused by insufficient pressure relief valve spring pressure. While driving the truck I am watching the fuel rail pressures WHAT IS THE BEST TIME TO REPLACE A FUEL RAIL PRESSURE SENSOR? The best time to replace a fuel rail pressure sensor is when any of the following conditions arise: 1. Cross References: Bosch: 0 281 006 019 Diesel (L5P) Terrain 2018 2019 1. 9. Is it normal to run such low rail pressure after doing a race plug? Shop the Best L5P Fuel System Upgrades including new Lift Pump Upgrades. Elevated fuel rail pressure can be symptomatic of several issues. Check the sensor circuit for open or short circuits that may be causing the low circuit signal. I have a 2016 Chevrolet Silverado 2500 with a 6. 6 Duramax. 10k or less seems a bit premature to me. Data pids show fine during testing. A. Now drive the truck hard-- with several wide open runs-- if there is any fuel in the bottle the FPRV [fuel pressure relief valve] is leaking main pressure from the fuel system. No Check Engine Light. The actual fuel pressure matched the desired with many instances pulling hills at 23k & 24k GM OEM L5P/ HP4 Fuel Pressure Regulator. 4. Once this happens, it will continue to happen and engine output will deteriorate quickly. High fuel rail pressure Duramax L5P. GM OEM L5P Passenger Side Fuel Rail. 2002 LB7 Duramax 6. My Account Contact Us. Jump to Latest night come back the next morning and it will fire right up and run for about 35 seconds. ASE and Chevy Master , 31yr Dealership exp, The DTI tech suggested that the larger volume of the 2 micron CAT filter may not allow new fuel to be sucked through the filter material as fast as the CP3 sucks the clean fuel out of the filter under load, therefore causing the 9. 6L LML (0) Reviews: Write first review Genuine Bosch New Fuel Pressure Relief Valve (DRV) 2011-2016 GM 6. 12646 posts · Joined 2009 Add to quote; Only show this user #4 The easiest way to tell if you have low fuel rail pressure is to plug in a scan tool or to install an OBD2 gauge monitor like the Edge Insight CTS3 or a Banks Data Monster and carefully watch two parameters: commanded fuel rail pressure and actual fuel rail pressure. SKU: 12686809 Categories: Engine Components & Sensors, High Pressure Rails, Lines & Components. This harness connects to the fuel pressure relief valve on the rear driver side fuel rail. Requires Shipping: Item Requires Shipping Tsb/recall performed for new sensor and pigtail. I only see like 9K psi rail pressure. My test show very high fuel rail pressure if I can get it started. Authorized Dealer. If the Injection Pump Fuse blew it would cause loss of communication. Check Price. GM's fuel pressure relief valve is notorious for opening under hard load and dumping fuel rail pressure. Have a 2017 GMC 3500 C&C dual fuel tanks throwing a random P0087 (low rail), reduced power, sputters, then shuts off. This is your warranty friendly alternative to a flash tuner. No Fuel pressure and I cant hear the pump at all when trying to prime with the key turned all the way. Details. Upon crank, it would go to ~700-800psi, and peak at ~1100psi. Leaking injector tubes, retorque 1 or more leaking injector return valves, dirt/water corrosion in them. It has gone about 6,000 miles and Diagnose the issue using a scan tool to confirm the P1089 code and check fuel rail pressure readings. Ok. any insight would be greatly appreciated!! '18 Chev 3500SRW 4x4 L5P. Excessive restriction, fuel supply, plugged filter or sucking air. They replaced it again along with the wiring to the ECM as per their breakdown. Recently, my vehicle shut off while driving and would not start back up. $312. 95 PRODUCT CODE: EC3Z-9J280-B; Customer: 2019 L5P Have codes P0089 P0191 P0480 P1682 P2293Changed fuel rail pressure sensor and connector on passenger side fuel railTruck misfires when idle and runs fine when idles up slightly. 2017-2023 Duramax L5P OEM Fuel Pressure Sensor Connector with Pigtail. SKU: 55495697; Item #: 55495697; Brand: GM; Condition: New Categories. OEM # 12686810 / 2439. FREE delivery Mon, Apr 1 . Aftertreatment Review on L5P. It ran great for a while and now it is back to cutting the power off at 2000 rpms. Pay Over Time. After completing repairs, programming flow rate IDs, and doing the priming procedure ( 2 Mins KOEO, and crank 15 seconds) 12 times. There are a few things that can cause this code like a bad sensor, or high or low fuel pressure. The truck is going into low power mode (Limp mode). Commanded pressure stays high. injectors, fuel rails, high pressure, low pressure pump and dpf recently replaced. Hope this helps. Direct replacement right side Fuel Rail Assembly. Tags: diagnostics, low rail pressure. 2017-19 GM T-K2 Platform Powertrain. WHEN By chatting and providing personal info, you I need the wiring color code for a 2017 L5P Duramax Fuel Pressure Sensor Connector. filled with fuel, took 1/2 intake line to engine, truck fired. I have a 2015 lml and I’m getting a p0087 low rail pressure code under hard acceleration, rail pressure stays with the desired pressure until 23,000 then the desired will go up to 29k as the actual rail pressure won’t exceed 23,500. Spent Friday trying to diagnose and fix by changing fuel filter, fuel line, then fuel filter head with no luck. 2K views 13 replies 5 participants last post by Alegabi1 Jan 9, 2020. Chevy / GMC Duramax 2017+ L5P Forums. The PCM also provides a ground on the sensor return circuit. 2017-2025- L5P VIN Code Y - Engine - Engine Components; Thats a first. I replaced all 8 injectors and the fuel filter. Training will include the use of service information. Symptoms include hard start/no start, rolling idle, fuel pressure drop wi About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright While leaving a restaurant with the wife, I go to restart the truck and low and behold. For 2006-2008 Vehicles - Diagnose Possible Slow Fuel Rail Pressure Decay First Important DO NOT replace the ECM, the fuel rail pressure regulator, or the fuel rail pressure sensor for this condition. SKU: 12686809. • Pressure Decrease: If a pressure hold does not correct the wheel slip condition, a pressure decrease occurs. 1989-1993 Dodge 5. 0 Reply. No fuel leaks. 6L L5P Duramax; Dodge Cummins. Low rail pressure could be caused by a restricted fuel filter, air in the fuel, a bad pressure relief valve, excessive return fuel from the injectors or a worn CP3 pump. If dude lives in the south I’d investigate a gelling fuel issue considering temps in the past week or so. What does low fuel rail pressure mean in Duramax? Bill. 1977-1987 1. Codes p0088 , p0087 , p128e , p24c4 We changed the egr bypass sensor and fuel rail pressure sensor , pulled the tank and cleaned it , installed new fuel filter twice , now only codes that came back is p0087 and p128e and goes to limp mode when floored. 6L Duramax L5P Driver (Left) Side Fuel Rail Assembly with Regulator. Important: If debris that can be picked up with a magnet as described above is found 2017-2022 L5P, L5D Duramax; Other. AirLift Since receiving the new Derringer harness from Banks, no more rail pressure issues, but all of the sudden I started having random low fuel lift pump codes. GM OEM L5P High Pressure Fuel Line, Rail to Rail (2017-2023) (0) Reviews: Write first review. This is required for proper fuel injector operation. I'm getting the check engine light coming on and the dealer tells me it's Low Fuel Rail Pressure. Regulator was very sloppy compared to the new one and I’m sure the fuel was bypassing the o ring. 15 posts · Joined 2018 Add to quote; Only show this user #1 · Jan 1, 2020. Passes FPR1 and FPR2 scan tool tests. previous: 2021 LM2 My actual high side fuel pressure is at 250-305 PSI. GM OEM L5P High Pressure Fuel Line, Rail to Pump (2017-2023) (0) Reviews: Write first review. Below is another forum link the that shows the fuel system on the l5p's and where the three pressure sensors are, basically a low pressure sensor and a high pressure sensor on each rail. It was doing that before and after changing the frc valve it seemed to fix it. Double check lift pump performance and fuel pump I bought a used 2018 2500HD Duramax L5P and a week after owning got a reduced engine power warning and got it scanned and received the P0191 code and took it back to the The regulator should be able to maintain pressure within 200-300 PSI of desired ideally. This replacement kit is categorized as a fuel injection part, and air & fuel delivery part, making it a vital component for your vehicle's performance. The Fuel Rail Pressure Sensor provides a signal to the PCM on the Fuel Rail Pressure Sensor Signal circuit. Rebuilt engine ~12,000 miles ago. Lol jk I use my insight. Only 4 left in stock - The Powertrain Control Module (PCM) provides a 5-Volt supply to the Fuel Rail Pressure Sensor (FRPS). 90 posts · Joined 2011 Add to quote; Only show this user The lowest pressure is going to be between the filter (biggest restriction) and the CP3. Part number 12686809. DTC codes P0087, P0093 or P1093 may set due to low rail pressure. 00 Original price was: $275. There are no starting issues and it seems to drive fine until I accelerate hard or I am pulling a load and accelerate hard or up hill. Faulty fuel rail pressure sensor on the low side. 6L V8 with a Duramax LMM. Started watching the requested vs actual fuel rail pressures on the Edge. 2018 L5P Sierra 4x4 SB, 2011 LML Sierra 4x4 CCSB, 2010 LMM, 2004. I had to have the truck towed for a THIRD 2018 l5p no start . Low pressure side 60-62 Also check your fuel rail pressure sensor/ connector to the sensor, and your fuel rail pressure sensor on the drivers fuel rail. 6L LML. GM 12686808 Passenger Side Fuel Injection Fuel Rail. Replaced low pressure lines. 8L LWN (2016 - 2022) Eliminate Low Fuel Pressure caused by Leaking Relief FRR= fuel rail ruler. By joev4628 in forum Duramax 06 LLY / 06+ LBZ & LMM Replies: 9 Last Post customer complaint- truck had loss of power when driving under any load or throttle more than cruising. Reactions: Edwards. T. Inspect the fuel rail pressure sensor for any damage or malfunction to begin addressing the P0192 trouble code. 6. However, now she turns over but does not start. Rail, Fuel Injection Feed Left Hand. Item Inquiry Tell a Friend. This is where some debate has come L5P no start. Fuel rail pressure drops way off. Add To Cart. Jump to Latest 4K views 21 replies hp4 or sensors or the driver side fuel rail, idk tho i’m not a mechanic but i like to work on my own vehicles! Another way to test is to get a fuel pressure test done as it normally will have low fuel pressure, and also get a scan for related fuel pressure fault codes. Start and idle the engine. 6 L truck, warms up will not have throttle, replaced whole c. I have no check engine lights for that problem, but it will. 11-24 6. Save Share The L5p's will increase the fuel pressure on key on and startup to force fuel circulation to warm the fuel in cold weather conditions. The P228C automobile fault code indicates a problem with the fuel rail pressure sensor or the high-pressure fuel pump. The table above is of a stock 2020 L5P. top of page. 00. Without going into a complete analysis, lets give you some of the highlights at least. O. Grid View. Add to cart. OEM # 12686808 / 2440. Fuel Rail Pressure Performance During Deceleration Fuel Cut-Off Sierra 2500HD/ L5P 3500HD 2019 2021 Involved Region or Country North America, Middle East, Israel, Palestine Condition • P0087: Fuel Rail Low Pressure • P0089: Fuel Pressure Regulator 1 Performance • P0191: Fuel Rail Pressure Sensor 1 Performance • P026C: Injection Quantity Too Low • P026D: Injection Quantity Too High Low rail pressure. My first diesel, 2019 Sierra 2500HD. 06 audi S 4, V8/6spd 05 dmax / allisonalways testing something new 2017 – 2023 6. Code P127D Description. 2022 Silverado 2500 Custom L5P / Banks iDash ---UA Local 693 Plumbers and Pipefitters Vermont SOLD:2008 LMM Silverado 2500 LTZ ECSB 4WD barely got off hiway and stalled. It is also surging in idle. jmaz268. 2,249 Satisfied Customers. Originally I put it because I would have an engine code pop up saying low fuel pressure to fuel rail and a mechanic told me that it would help so I added Learn about the causes and solutions for low fuel pressure in Duramax engines. 3 - LLY, 1 - LBZ, 2 - LMM, 1 - L5P. 6L Duramax L5P Passenger (Right) Side Fuel Rail Assembly with Pressure Sensor. (unless my search skills suck, which is a possibility). Things I’ve done: Replaced fuel filter Checked the fuel rail pressure sensor plug. 7L Ram Cummins Fuel Rail Pressure Sensor Sale! PRODUCT CODE: 4306993. Reactions: rickbat. You're viewing: 17-23 Fuel pressure regulator (FPR): Map actual versus desired rail pressure, if the graph is wavy and there is no air in the system it is usually caused by a bad fuel pressure regulator. Wait about a minute, start truck, and runs fine. GM OEM High Pressure Fuel Line, Rail to Pump New Part #12685931 Supersedes Old Part #12687231. P1089 GMC Code - Fuel Rail Pressure Performance During Deceleration Fuel Cut-Off OE connector housing with CPA lock to guarantee correct and secure connection! Upgrade your fuel pressure regulator #2-driver's side fuel rail pigtail from the cheap tin factory connectors to Gold plated ones, to keep from having repetitive issues! This replacement kit is designed for 2017-24 Chevy and GM vehicles wi This holds the pressure steady on the brake so that the hydraulic pressure does not increase or decrease. ASE and Chevy Master , 31yr Dealership exp, 1,030 Satisfied Customers. Tanc Crusher. 2 out of 5 stars. 6L engine will not start, one of the first things to check is fuel rail pressure. Im not 100% positive exactly how the truck is supposed to run because it’s new to me and I’ve never owned an L5P, but the truck seems to have a mild lope at idle, and a faint surge under light throttle, slow speed (30-40mph), at low RPMs. Is anyone getting fuel rail pressure codes when towing heavy loads? I've been searching and can see others getting it on older duramax's but not the L5P. Alegabi1 Discussion starter. Log In. it just cranks forever again with no start. 8L 6. Had to borrow a buddies truck to finish the trip. Consider the following potential causes and troubleshooting steps: Low Fuel rail pressure" code, 02 duramax what might be the problem? Hal. dasdasd. show blocks helper. Chevy Duramax L5P Fuel Rail Pressure Sensor location How to Reset Fuel Rail Pressure Sensor. comFollow Me On P0087 Fuel Rail Pressure Too Low 1) Excessive restriction, fuel supply, plugged filter or sucking air. 2020 GMC Sierra SLT 3500 CC/SB L5P 3/14/20 Payload 3726lbs. voltmeter, and pressure gauge. Save Share Reply Quote Like. By bringing the fuel rail pressure to its desired pressure sooner it allows for finer fuel atomization and a more complete fuel burn. 42k miles. $199 GM Duramax - 2017-2025- L5P VIN Code Y - Fuel System - OEM Fuel System. If the desired is staying fairly steady and the actual is bouncing a couple hundred psi, Truck has a new fuel filter and rail pressure sensor with pigtail. 83. 99. 8 L Duramax, 2017 – 2019 Cruze and 18-19 Equinox. The EBCM decreases the pressure to individual wheels as needed during deceleration when wheel slip occurs. Replaced the fuel pressure regulator at the fuel rail (drivers side by the firewall) and haven’t had the code come back. R. 6 L VW Diesel; 1996-2003 1. Truck was in limp mode due to P0191, cleared code and have driven it for almost 2 hours and have not had any issues. 8L Canyon, Colorado, Cruze and Equinox. Confirm that the connector contacts are secure and properly connected to the sensor. If this issue is not addressed, it can lead to engine misfires, damage to components such as the fuel injectors, and ultimately engine failure. Checked and reset a 'low fuel rail pressure' code. 4L Ford Low Pressure Oil Pump Kit 01-04. find01 Discussion starter. INNOVA 5210. 2019 Chevy Silverado 2500 High I’m troubleshooting my 2015 lml, died on the side of the road low rail pressure P128e and the change fuel filter message. fuel filter housing replaced along with all rubber fuel lines with heavy duty fuel lines because of TSB on issues 2017 – 2023 6. What Ive noticed is that if im commanding lets say a 160mpa fuel pressure im seeing about 140mpa (this is with about 2600pw) BUT! if i up the commanded pressure to 180mpa (while keeping the same 2600pw) ill see a 160mpa. Had a “change fuel filter” on the dash so I swapped the filter for a new on and the next day it went back I have noticed that under heavy throttle or even W. Anyone know of other This could also be caused by low or no fuel, faulty fuel rail pressure sensor 2, faulty wiring or connectors, faulty fuel pressure regulator, or leaking vacuum hoses to fuel pressure regulator. and in the description of the fuel injection system with illustration The fuel injector return line pressure regulator (14) maintains fuel pressure on the return side of the fuel injectors. 6L LWN LML L5P $ 71. All currently on road. Common Symptoms: Reduced Power: Your Took it in yesterday morning and did manual Regen, checked fuel filter and cleaned it out, tried tapping around some connectors and wires to trip it and no luck. L5P Duramax 2017-2024. The parameter should be between 30-40 MPa, The fuel injector return line pressure regulator (14) maintains fuel pressure on the return side of the fuel injectors. This information is used for the instrument panel (I/P) fuel gauge and the low I have a 2018 Duramax L5P that will crank but not start. most of the time the problem is caused by your fuel pressure relief valve popping open under high pressure and then bleeding off rail pressure thus limping the truck. I have zero change in pressure. 17. Buy with. 2017 - 2023 L5P. AirLift LoadLifter Replaced the fuel rail pressure sensor and Fuel pressure has returned to normal i think. This the sensor part number 13516495. Chris Brooker. DO NOT perform the repair listed in this bulletin. Replaced-fuel pump because of weak fuel pressures and replaced both fuel regulators after some diagnosing pointed to them being possibly faulty. 5 L, 1. In this video I walk through diagnosing a P0087 trouble code on a 2006 GMC Duramax. Order the model recommended for your application. 8048 posts · Joined 2006 Add to quote Diesel Fuel Line Release Tool for 2010-2021 Chevrolet Duramax 2. (Not everyone’s cup, I get it. Jump to Latest 7. I have already replaced fuel rail pressure sensor and regulator on the rail again. AirLift LoadLifter 7500 XL 2019 Arctic Fox 27-5L Andersen Ultimate II. For LLY, LBZ, LMM, see Enhanced Injector Return Flow Test above also. Mounts To Left(Drivers Side) Fuel Rail. I have removed the electrical plug on the back of the CP3 pump and supposedly it is to max pressure out (normally open switch) to 23,000 ish PSI. 7L EBP Sensor 17-23 6. 6L LB7 Rear Return Hard Line. Maximum restriction at WOT (wide open throttle) is 5 inches HG in park. If the pressure is below spec, one of the most likely causes is a defective injector that is returning excess fuel back to the tank. 9L 12V Cummins Genuine Bosch Fuel Pressure Relief Valve (DRV) 2011-2016 GM 6. Observe the Fuel Rail Pressure Sensor parameter with a scan tool. Replacing #2 Fuel Pressure Regulator on L5P Duramax 12-4-2023 Thank you for watching! If you would like to see exclusive, add free content along with early a 2017 CHEVROLET 3500 L5P DIESEL. Sent from my iPhone using Tapatalk Pro . SKU: 55495697. SKU: 12686808; Item #: 12686808; Brand: GM; Condition: New Categories. 6L Diesel (LH7) Yukon 2021 2023 3. Wire #11 Dark blue/white is sensor signal to PCM (Cavity 1) Wire #12 Black/yellow is low reference {ground} (Cavity 2) Wire #12 Brown/Red LETS GET THIS CHANNEL TO 18,000 SUBSCRIBERS!!!NEED L5P Parts? MESSAGE ME ON INSTAGRAM @Denny_Diesel OR EMAIL dennydiesel@yahoo. It would usually peak somewhere around 24K and drop down to 18-19K as I kept my foot in it. 1) Excessive restriction, fuel supply, plugged filter or sucking air. 13-18 6. Shop All. Expert. Fuel pressure is steady I know the fuel regulator 2 relieves the rail pressure after shut off but the trucks is losing all pressure in both high and low sides. SKU: 12686810 / 12678991. 2021. when cold white smoke from tail pipe until warm. GM L5P Fuel Pressure Relief Valve Pigtail Harness. Connected the scanner up and the highest rail pressure observed during Having trouble identifying the cause of a no start with low fuel rail pressure. since then we have replaced the driver side fuel rail with sensors, the fuel sending unit in the tank and i tried a new I’m looking for some help diagnosing a difference in desired vs actual fuel rail pressure in 5th gear while towing a 8500 lb travel trailer at 65 mph with my stockish 07 LBZ w/ 255k miles. 4/10 Our Score. It could mean that your current sensor has failed or is malfunctioning, so it should be I got a 140 fass fuel for my 2017 gmc 3500 L5p , after 2-3 months it just started leaking right around the gauge port , can’t figure out why, if anyone has any ideas please lemme know. The truck never goes in to limp mode and there are no drive-ability issues that My test show very high fuel rail pressure if I can get it started. 7L Ford Powerstroke OEM Fuel Rail Pressure Regulator Sale! $ 275. 2) When driving under hard acceleration maximum would be 7-8 inches Hg. I’ve got a 17 L5P that falls on its face at or close to WOT. A failed pressure relief valve will cause your vehicle to go into limp mode and also throw a few different DTC's. Check for any damage or corrosion on the sensor. SKU: 52281558. 4k miles. Notes: magnet (Contamination) is found on the Fuel Pressure Regulator 1, Fuel Rail Pressure Sensor, and/or Fuel Pressure Regulator 2 (Pressure Relief Valve), refer to PIP5151 and Contaminants-in-Fuel Diagnosis. GM OEM L5P Drivers Side Fuel Rail (2017-2023) (0) Reviews: Write first review. It’s on the frame rail under the drivers side and primes with the ignition in the “on” position. Fuel rail pressure caps out at 16k and desired is around 28k. The dealership said the fuel rail connector had been changed before my purchase much to my dismay. under hard acceleration i get a puff of black smoke out the tailpipe. $ 229. Staying proactive about fuel filter changes can help avoid costly repairs linked to low fuel pressure codes like P0087 down the line. Best Tool Box For F150 – Swing, Low Profile, Under Seat, Flush Mount; Diagnose Your Car’s Exact Make and Model Issues with an OBD Scanner. Low Fuel rail pressure" code, 02 duramax what might be the problem? Hal. just confused on why it only throws the code while doing that and it'll go into limp mode and wont even stay running. 5 LLY. With tuning, we can control that duration time. Then we got a low fuel rail pressure code and we changed a frc valve on the cp3. ) Fuel level full to 1/2 tank during episodes described below, no blockage of OEM tank mounted fuel cooler/radiator. If you have high or low pressure upon replacing the 2017 L5P CCLB DRW LBZ 2015 LML sold 2014 LML sold 2005 LLY sold. Fuel pressure low DTC P2635 help. Few aesthetic changes, otherwise stock, for now. and the outside temp on the first day was in the low 80s. In the event the vehicle runs out of fuel, a check valve (11) in the exhaust after treatment fuel injector (10) supply line opens, and the fuel supply pump backfills the It appears you're experiencing a fuel system issue with your L5P Duramax. $221. $69. The Engine Control Module (ECM) uses the Fuel Rail Pressure (FRP) sensor to constantly adjust the high-pressure fuel pump's feed rate so that the ideal pressure is permanently maintained in the high-pressure section (between the high-pressure fuel pump and the injectors) by means of closed-loop control. 6L L5D (2019 - 2023) 3. About 1500 miles into the trip, I noticed the check engine light on. ‘17 L5P does not have a priming bulb on the fuel filter. SKU: 12685931 / 12687231. But if the return rates on the injectors where high wouldn't it relieve the pressure throughout the throttle? low fuel rail pressure. P0087; fuel rail pressure is less than 22. 5 MPa at more than 600 RPM, fuel rail pressure too low. Inspect the fuel pressure sensor for proper operation and replace if necessary. . The fuel rail pressure sensor on a diesel engine is an electronic sensor that monitors fuel rail pressure. With the factory relief valve I could see 9K at like 20% throttle. Fuel Pressure Sensor is included. Add to Wish List. Discussion will continue with the low fuel rail supply and hydrocarbon injector operation. 83 $ 69. Got some grief but they supposedly replaced the LH Fuel Rail & Pressure Sensor after 3 days in the The fuel system featured on the L5P could best be described as a 100% complete overhaul. John C Garage. The isolation What controlls the fuel rail pressure at idle and low RPM. If the sensor is not reading pressure correctly, could that keep the injectors from opening and keep the truck from starting? If the sensor is reading correctly and unplugging the sensor did not max out the pressure, what could be the issue? Sent from my SM-S908U1 using Tapatalk Potential causes of fuel rail pressure sensor issues often stem from underlying issues with the sensor itself or related components within the fuel system. Troubleshooting techniques involve checking for loose electrical connections, damaged wiring, or corrosion that may affect the sensor’s readings. Any ideas? Thanks. About two weeks ago. GM OEM L5P/ HP4 Fuel Pressure Regulator (2017-2023) (0) Reviews: Write first review. With the change fuel filter light on. Part Number: AP63632 Hello, I am currently trying to troubleshoot a 2010 Chevrolet Silverado 3500 HD Diesel 6. However in this situation I would change it to rule out the low pressure side being an issue. The focus is on making sure the low-pressure system is getting the correct pressure to the injector pump for the injector pump to then have the ability to make the right rail pressure Check fuses/relays. 17. Low pressure side 60-62 Compression test show 345psi on all cylinders except 400psi on 8. When your vehicle’s dashboard displays a warning light indicating low fuel rail pressure. This sensor signal voltage changes based on the pressure in the fuel rail. Starts about 8,000psi and soon jumps to 11,000-12,000 psi before it dies. 6L Duramax L5P Passenger Side Fuel Rail. If your having a low rail pressure code check this first it could save you a costly repair bill! We have seen this more than once it’s now a must to check fi 2017 – 2023 6. pressure reading (again, only example numbers) on the low pressure side & throwing the code. Description: Fits: 2017-2023 GM/Duramax Item #: 12707344 / I am getting p087 code- low rail pressure. Includes Fuel Pressure Sensor. I currently have 311k miles on truck and am putting a cp4 back on. Reactions magnet (Contamination) is found on the Fuel Pressure Regulator 1, Fuel Rail Pressure Sensor, and/or Fuel Pressure Regulator 2 (Pressure Relief Valve), refer to PIP5370 and Contaminants-in-Fuel Diagnosis. 5-2005 LLY Duramax Fuel Injector Connector 2017 Chevrolet Cruze 1. I have determined by pulling the plugs that Bank 1 fuel injectors (1,3,5,7) are not opening dry plugs after several crank cycles. I have no check engine lights for that problem, but it Rail Pressure Sensor for Duramax L5P and 2. 0LTurbo Diesel (LM2) • P0087: : Fuel Rail Low Pressure • P0171: Fuel System Lean • P0172: Fuel System Rich • P026D: Injection Quantity Too High • P0300: Engine Misfire Detected • I need the wiring color code for a 2017 L5P Duramax Fuel Pressure Sensor Connector. During part throttle operation, the commanded fuel rail pressure will vary between 5,000 to 18,000 psi, and The 0193 often points to an actual fuel rail pressure concern or the pressure reading is wrong from a bad sensor or wire issue. J. The relay that gave the injection pump power had a faulty socket in the fuse block and would drop power and it would throw a communication code almost exactly like that and result in a no start condition. 00 $ 269. Clear everything and comes right back as soon as I pull the hill in front of my shop. GM Certified Master Technician. Qty: Add to Cart Add to Wishlist. Fits: 2017-2023 GM/Duramax Pricing: $152. Test the fuel pump for proper pressure and flow, replacing it if it is failing. I have full warranty bumper to bumper till 115k miles. Rail Fuel Pressure Sensor Fits 2017 – 2023 L5P 6. Leaking cascade valve. Important: If debris that can be picked up with a magnet as described above is found Sierra L5P 2500HD/3500HD 2019 2021 Involved Region or Country North America, Middle East, Israel Some technicians may find one or more of the following DTCs set in the Engine Control Module (ECM): • P0087: Fuel Rail Low Pressure • P0089: Fuel Pressure Regulator 1 Performance • P0191: Fuel Rail Pressure Sensor 1 Performance • P026D The Engine Control Module (ECM) monitors for changes in fuel rail pressure when the vehicle is in a deceleration condition and the fuel injected quantity is at zero. Never an issue. SCR and NOX, issues with NOX sensors and EGR Operation . Lift pump pressure in spec. 25. 95 Add to cart Fuel Rail Pressure Sensor | 2017- 2023 L5P 2016 - 2022 LWN. Replace your fuel rail pressure relief valve with a brand new Bosch replacement. Buy Now. 5 GM Duramax 6. L5P Fuel System Diagram (1) Secondary Fuel Tank (with N2N) (Contains Fuel Rail Pressure Sensor 1 and Fuel Rail Pressure Sensor 2) (8) Fuel Rail Assembly (9) Fuel Rail Pressure Regulator 2 (10) Fuel Pressure Regulator 1 (Located in Fuel Injection Pump) (IPC). 4L Starter Motor Getting a low fuel rail pressure code when getting on it. Proceed with sensor troubleshooting by testing the engine-ECU to Low fuel rail pressure, need help diagnosing. This sensor can be located on the front of the passenger side fuel rail. It’s on the frame rail under the drivers side and One week from purchase it threw a P0191 code and then a P0189 code which put the truck in limp mode. Fits: 2017-2023 GM/Duramax Pricing: $43. Ron Nielson. Load test of wires are ok. Price Match Guarantee! Welcome Guest. 99 vs 10. Straight into limp mode on the highway. I bought a used 2018 2500HD Duramax L5P and a week after owning got a reduced engine power warning and got it scanned and received the P0191 code and took it back to the dealership to address. Denso Common rail system, low pressure and high-pressure will be reviewed. List of potential causes. the HP4 was replaced due to low fuel pressure but there was no metal shavings in the fuel system. 2017-2025- L5P VIN Code Y - Fuel System - OEM Fuel System; GM OEM L5P Drivers Side Fuel Rail (2017-2023) GM OEM L5P Fuel Pressure Sensor Pigtail Harness (2017-2023) P0087; fuel rail pressure is less than 22. 6L L5P (2017 - 2023) 6. L5P 2017-2025. Description; Details Lowest Price. 2. GM OEM L5P Fuel Pressure Sensor (2017-2023) (0) Reviews: Write first review. Replacement Fuel Injector Connector With Pigtail, Duramax | 2017 - 2022. Description; Details; Shipping; Reviews; Description. I need the wiring color code for a 2017 L5P Duramax Fuel Pressure Sensor Connector. The system was loaded up with air so I made up an auxiliary tank to the inlet of the filter housing, primer High fuel rail pressure Duramax L5P. customer: 2017 chevrolet 3500 l5p diesel. 6L LLY GM Duramax for Cumnins ISBe ISF ISLe QSL ISDe DAF Iveco Supreme Quality. Install special tool J44638 to check vacuum restriction on fuel supply to the high pressure pump. Coming at a third of the cost of a GM replacement. The fuel rail is a metal tube that connects the fuel delivery system to the engine. Refine Your Search. Pressure is maintained via a “Constant Pressure Regulator” at 4-11 BAR (58-160 PSI). This can lead to various symptoms that you might notice while driving. Alliant Power rail pressure sensor AP63632 fits 17-23 Duramax 6. This issue can impact the engine’s performance significantly. SKU: 12705429. LB7-LMM 2001-2010 More. 93. It did not, according to the fuel pressure rail sensor. zkqh pblz xqmwmsq usktdx dxnq hfyk zupog pnfk mbr ifbezezv