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472 posts · Joined 2007. #1 · Dec 14, 2010. Have a 04 LLY Duramax that I cannot get too start up. I replaced the fuel filter housing as well and it primes up good and hard. The only code I'm getting is a p0090 something with the fuel pressure regulator.May 16, 2022 · P0090 Chevrolet Code - Fuel Pressure Regulator Control Circuit - Code Popularity: 36,198 Views - Repair Importance Level: 3/3 - Repair Difficulty Level: 3/3.09 gmc 6.6 lmm. 09 lmm throwing p0090 code fpr circuit. I've changed fpr, mass air flow sensor, map sensor, throttle position sensor. Still getting code. I ohmed out my fpr wire and it's good. I'm showing 25k-29k psi on fuel rail. I'm also only getting 2.5v-3v at the fpr plug.Here's the direct quote on the work order from the tech: "Verified DTC P0299 set history, as per bulletin 11-06-04-001, reprogrammed ECM. Following SI control module references performed options capture then reprogrammed ECM." In English...reflashed the appropriate computer codes.Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain P0045 code. Jump to Latest Follow ... I got a P0045 CODE on my 2004.5. Truck is all stock. Where is the turbo vane position sensor at, and also where is the solenoid? Thanks . Save Share. Like.Duramax Third Generation: 2006-2007.5 (LBZ & LLY) 06 lbz has code u0100 pending in limp mode ... Tried to clear the codes with torque app guage came back for a split second and code came back. ... P0090 Fuel Pressure Regulator Control Circuit P0118 (ECT) Sensor Circuit High Voltage ...Whether you just want to be able to hack a few scripts or make a feature-rich application, writing code can be a little overwhelming with the massive amount of information availabl...Detects delta temp. due to block heater effect or faulty in-range fuel temp.sensor. Fuel temp delta = (Start-up fuel temperature - Start-up coolant temperature) If -9.75degC> Fuel temp delta > 9.75degC uneffected by block heater. None of the following codes are set: P0112, P0113, P0182, P0183, P0500, P2610.Engine Swap, now code problems, P0090. Hello, looking to see if anybody has had same experience as me, need some help. Have an 014 Sierra, and changed L83 engine, old engine made nasty tappet noise, and shaft seals had leaked, and when I changed oil and cut up filter, was some metal in filter, so figured Cam was worn, and went engine swap route.P0090. Circuit/System Description. High pressure fuel is regulated by the fuel rail pressure (FRP) regulator mounted on the fuel injection pump. The FRP regulator is controlled by the engine control module (ECM). The FRP regulator has a solenoid supply voltage circuit and solenoid control circuit.chrisdefo26 said: My dads '18 Sierra 5.3l randomly started throwing P00C8 and P0090. open circuit in high pressure fuel pump actuator high control circuit and fuel pressure regulator control circuit open. Truck went into limp mode, he babied it home. Hooked the scanner up and deleted the codes, truck drove fine for a few days then both codes ...Chevy / GMC Duramax 11-16 LML Forums. 11-16 LML Duramax Powertrain. P0420. Jump to Latest Follow 20K views 4 ... I've had this code in the past, cleared it and a month later it was back. Followed some steps in here about checking the temp on the different sensors and determined that in a regen it wasn't getting hot enough.P0118. The ignition is ON. DTC P0118 runs continuously within the enabling condition. Conditions for Setting the DTC. P0117. The ECM detects that the ECT Sensor is warmer than 149°C (300°F) for more than 10 seconds. P0118. The ECT sensor temperature is colder than -39°C (-38°F) for more than 60 seconds.Nov 8, 2009 · 6.5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004.5-2005 (LLY) 6.2L Diesel Engine Fuel System, Air, Exhaust & Emissions Upgrades Top Contributors this Month View AllIf DTC P0090, P0168 or P0191 is also set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. See: Diagnostic Trouble Code Descriptions; Ignition ON for 90 seconds, verify the scan tool FRP Regulator Command parameter is less than 20 percent. If greater than the specified range, replace the ECM. Attempt to start the engine.2003 chev 2500hd with Duramax, was going down road and it died, 1/2 tank fuel,I pushed primer pump until solid, started and drove about 2 miles and died for good, has a code p0090, p0380, and code u-1 … read moreP0001 is the OBD-II generic code describing an issue with the circuit which runs from your engine computer (ECM) to your fuel pressure regulator on your fuel injection rail on your engine. The ECM regulates your fuel pressure from your fuel pump going to your engine through this circuit. When the computer detects a fault in the circuit, it will ...P2564 Code. Definition: Turbocharger boost control position sensor ciruit low voltage. Explantation: The ECM detected a low voltage from the Turbocharger Boost Control Position Sensor. Probable Cause: 1-Open or short ciruit condtion.truck, 2007 silverado HD 2500 vin D6.6 duramax code..air intake hello, i am having a heck of a time with this truck, 2007 silverado HD 2500 vin D 6.6 duramax code P0540 air intake heater curcuit A a local shop told me it was the glow plug modual origianaly. we had …P0090. Circuit/System Description. High pressure fuel is regulated by the fuel rail pressure (FRP) regulator mounted on the fuel injection pump. The FRP regulator is controlled by the engine control module (ECM). The FRP regulator has a solenoid supply voltage circuit and solenoid control circuit.Who writes and enforces the U.S. tax code? Read about who writes and enforces the tax laws in the United States. Advertisement If you think that tax forms are unnecessarily complic...Can a bad CP3 cause this "Lost communication" code? fast03 Active member. Jun 15, 2008 1,201 6 38 60 Rancho Cucamonga. Jun 10, 2014 #7 ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. We strive to keep this the #1 forum for tech and …i got efi live autocal tuned by longhorn fab shop and after plugging up the dsp5 switch went to start the truck and code p0090 code threw and truck wonty start and also dsp5 switch isnt getting power any ideas of the problem? 08 duramax efi live tuned by longhorn fab shop and 5in flo pro exhaust with 8in tip, air dog 165, race plug, w/m, fass ...How to fix a P0193 engine code: Fuel Rail Pressure Sensor Circuit High Input A P0193 Code is set when the fuel rail pressure sensor reports pressure is abno...Chevy / GMC Duramax 11-16 LML Forums. 11-16 LML Duramax Powertrain. P0090 Check engine code. Jump to Latest Follow 5K views 4 ... I hooked up my engine code reader and it spit out P0090. I did some research and found out it has something to do with a fuel pressure regulator.Oct 31, 2020 · 28. Oregon. Oct 31, 2020. #5. P0090 diag runs when the key is on and the commanded FRP regulator current is between 400-1500mA. The DTC sets if the FRP current is not between 50-1600mA. A wire may have been broken during your repair, or possibly smashed under something (grounding out).The exact MPG any engine gets depends on the vehicle it’s used in, but the 6.6-liter Duramax diesel engine gets an EPA-estimated 15 MPGs in city driving and 20 MPGs on highway driv...The issues started getting worse again. Right up until the engine limped and threw a P0090 code that will not clear. I did not get any other codes. No low or high rail pressures. I have battery + voltage on the the purple wire going to the FPR seems like 2.5 volts across the purple/yellow wires. And 1.25 V- on the yellow.mijdirtyjeep. You need to fix the source of the problem. As stated above, start with the injectors, and if they check out you need to move onto the CP3 pump. If it is throwing the code when hauling heavy loads only and not when unloaded, that would "from lots of reading" point me to believe the CP3 is worn out.8 posts · Joined 2015. #1 · Jan 18, 2016. 03 lb7 getting p0089 fuel pressure regulator 1 performance code and p0088 fuel rail/ system pressure too high code. truck was dufueling and throwing these codes. i thought it was the fpr so i replaced it but the codes and defueling came back. truck starts and goes fine when plugged in over night.Jul 27, 2016 · The ECM detects that the signal circuit voltage is more than 4.75 volts for more than one second. Action Taken When the DTC Sets. DTCs P0192 and P0193 are Type A DTCs. The ECM commands the engine to operate in the Reduced Engine Power mode. The message center displays Reduced Engine Power.It is time to change the fuel pressure regulator (FPR) in my 2001 LB7 Duramax GMC Sierra 3500. My removal procedure is slightly unorthodox compared to other...1. Ignition OFF, disconnect the FRP sensor connector. 2. Turn ON the ignition, with the engine OFF. 3. Observe the Fuel Rail Pressure Sensor parameter with a scan tool The fuel pressure should be 200 MPa (29,000 psi). If the fuel pressure is 0 MPa (0 psi), test the FRP sensor signal circuit for a short to ground.I didn't look the code up, but if it doesn't get up to 'normal' operating temp its time to replace the thermostats. 2023 LZO CC std box 4x4 previous: 2021 LM2 CC std box 4x4 ; '18 2500 L5P CCSB 4x4; '11 LML, '10 LMM and 04.5 LLY ... A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion ...Code P0090 Thread starter Mogman; Start date Apr 20, 2021; Forums. Duramax 6.6 Technical. Duramax Hard Parts. LMM . Prev. 1; 2; First Prev 2 ... We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. From all out performance builds running 8 …About a year ago it set the P0090 code again so I swapped the fuel pump relay and one of the others (my truck has 7 relays with the same part number), cleared the code and it has been fine until two days ago. ... 07 GMC Sierra Classic (LBZ) Duramax Dually Crewcab 4X4, FASS Titanium 95, Ohio Diesel Parts Tank Sump, bypass engine oil filter ...Nissan Juke Service and Repair Manual / Engine Control System K9K / DTC/circuit diagnosis / P0090 fuel pump. DTC Logic. DTC DETECTION LOGIC. Diagnosis Procedure. 1.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE) POWER SUPPLY. 1. Turn ignition switch OFF. 2. Disconnect high pressure supply pump (pressure control valve) harness connector.Step-2: Check the Transmission Fluid Level and Condition. Next, check the transmission fluid level and condition. If it looks burnt or has particles in it, you'll need to replace it. Make sure to also check for leaks while you're at it. If the fluid looks clean but low, you'll need to add more.Chevy / GMC Duramax 06-07 LBZ & LLY Forums. 06-07 LBZ & LLY Performance Parts Discussion P0090 Code After EGR delete. Jump to Latest ... I have the codes p0047 and p0090 together, boost is jumping from 0 to 100 and fuel moving from 12 to 12.8 ish . Save Share. Like. A. aaro9991.Can a bad CP3 cause this "Lost communication" code? fast03 Active member. Jun 15, 2008 1,201 6 38 60 Rancho Cucamonga. Jun 10, 2014 #7 ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. We strive to keep this the #1 forum for tech and …P0118. The ignition is ON. DTC P0118 runs continuously within the enabling condition. Conditions for Setting the DTC. P0117. The ECM detects that the ECT Sensor is warmer than 149°C (300°F) for more than 10 seconds. P0118. The ECT sensor temperature is colder than -39°C (-38°F) for more than 60 seconds.🔴 Find out everything about the P0090 fault code! In this video, we will explore the description, symptoms, causes, and solutions to resolve this problem. D...Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain Injector codes. Jump to Latest Follow ... LLY throwing multiple codes p2149 p1296 p0090 p0102 p0700 p1249 p0202 Truck has ove 300,000 miles If I just replace injector 2 will this clear all other codes? Save Share.P0001 is the OBD-II generic code describing an issue with the circuit which runs from your engine computer (ECM) to your fuel pressure regulator on your fuel injection rail on your engine. The ECM regulates your fuel pressure from your fuel pump going to your engine through this circuit. When the computer detects a fault in the circuit, it will ...I have a 2006 LLY and it was throwing code P0097. I put in a new IAT Sensor and cleared the code and the pending code as well. I drove it about 60 miles and the code never came back on. I parked and about an hour later, I turned the key on and engine light came on. ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 209.5K members Since 2005 A ...DTC P0090 is a Type A DTC. The ECM commands the engine to operate in the Reduced Engine Power mode. The message center displays Reduced Engine Power. Conditions for Clearing the DTC. DTC P0090 is a Type A DTC. Diagnostic Aids. There are no driveability concerns associated with the FRP regulator unless a DTC is present....