P0090 code duramax

2015 chevy equinox 2.4 p0017 - diagnostic networkP0092 - fuel metering solenoid -short to positive - troublecodes.net Chevy equinox 4l p0090 151aP0090 duramax limp gmc. P0449 2012 Chevy equinox - YouTube. Check Details. P0090 code after egr delete

The time to power down may vary from vehicle to vehicle. After power down is achieved, turn the ignition key to the ON position and clear the trouble code using the scan tool clear code function and power down ECM. Repeat power down if the trouble code does not clear on first attempt. DTC P0192 or P0193.Jun 10, 2014 · 60. Rancho Cucamonga. Jun 10, 2014. #1. Hey all, I got a buddy with an 04.5lly having a no start with this code. Truck runs a 50hp tow tune and is basically stock otherwise. He said it started having a high and low idle. then he shut it off. It sat overnight and will not restart now. I have had him check all his wiring from the ecm to the FICM.Nov 7, 2019 · Reading the FSM for diagnosing this says if you have a P0088 and a P0090, follow the diagnostic steps for the P0090. Basic diagnosis there requires a scan tool, key on with engine off should have < 20% for the FPR regulator command. After that, it's wiring checks. Unplug the FPR, there should be 12v on pin 1 supplied by the ECM (purple/white on ...No problem changing them out but I put everything back together and I immediately get a P0090 code when I turned the truck back on. ... P0090 diag runs when the key is on and the commanded FRP regulator current is between 400-1500mA. ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech ...Got fuel and drove about 10 miles. Notice that my check engine soon light had come on I got to code P0090 and another that I don't recall. Drove another three or 4 miles and pulled over at my exit open the hood and notice I was pouring feel out of my cylinder number two you injector line on the...Truck will crank no start gave me a p0090 code Checked with Zeus scan tool, Lml duramax, 2015 GMC Sierra 2500hd, I have - Answered by a verified GMC Mechanic. ... Just put in a long block on a 2013 Duramax lml. Getting code p128e and p0303. Engine runs rough and is in reduced power mode.

Hey everyone, Got an 03 LB7 Duramax, and just replaced the injectors. It won't start, and it's throwing P0088 and P0193. Now, I installed a Nicktane Cat filter and I can hear bubbling. I'm gonna pull that filter head tomorrow and check it out, but would that cause P0088 and P0193? Sent from my iPhone using Tapatalk.The P0090 says it is a "Fuel quantity solenoid circuit open". P0088 is "Rail pressure signal is above maximum limit". Symptoms - when i start it, the idle is incredibly rough, feels like a clogged carb. (Maybe I could check that.....) And there is a really loud knocking to the engine. It sounds like an old Dodge when it does this.Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain what code is a b0090 ... There is alot of info for that code. By changing injectors what would cause this code to come up. ... Are you looking for B0090 or P0090? DMax BLACK '05 LS CC LB @ 100K miles, factory 2" lift, HID's Banks Economind, IQ, Intake, ...I have a 2006 a Chevy Silverado 3500 4wd 6.6 with the following codes:P0045:00 P2610:00 P0671:00 P0672:00 P0673:00 P0674:00 P0675:00 P0676:00 P0677:00 P0090:00Please help. Not sure what to do. Custome … read moreIf the ECM detects a problem in the FRP regulator circuit, it will set a DTC (diagnostic trouble code), P0090 Fuel Rail Pressure (FRP) Regulator Control Circuit Malfunction, and illuminate the MIL (malfunction indicator lamp). Note: Open Circuit means that a component or sensor in a system is deprived of the reference voltage it needs to work.2006 GMC duramax diesel 4x4 sbcc, Customer brought it in with no boost, Stock turbo had excessive play in the impeller, Replaced it with a stock remanufactured turbo fro BD diesel performance (garret certified dealer), after test driving it threw a P003a (boost control position not learned) and a P0299 (engine under boost) It felt like it was making good boost 75% of the time and drove normal.P1089 Code. I have a 2019 GMC 3500 Sierra Duramax. I recently threw the code P1089. When I check it at home, it returns as a battery, alternator, or starter problem however when I have it checked at Orielly's, it returned as a Fuel Pressure Rail. I was close to needing to replace my fuel filter prior to the Check Engine lighting on.

The 2015 Chevrolet 2500HD powered by a Duramax 6.6-liter turbo-diesel V8 engine offers a towing capacity of 17,900 pounds, while the model featuring a gasoline-fueled Vortec 6.0-li...Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain LB7 shut off not start u1800. Jump to Latest ... 223000 miles without electrical problems, but halfway out the driveway today it shut off and refused to start. I have a code u1800 for no communication between ecm and ficm. Preliminary check on the wiring and …Here's the codes p2227-00, p0047-00, p2565-00, p0118-00, p0090-00, p0851-00 and p0193-00 I think the truck is possessed. I didnt get any of these codes before I messed with the ecm. I dont get any codes using my old scanner other then the abs ones. Sorry for sounding like a kook.This can cause the voltage to fall out of the normal range and the P0191 code. Failed Engine Control Unit. Engine computer issues are usually caused by software failures out of the factory. A flood, accident, or electrical overload can also cause the module to fail. A bad ECU is the last thing you should suspect.On my duromax diersel 6.6 l my trouble codes are p0090, p0380, p0374…. WelcomeCustomer I will need you VIN to determine the year and the model of duramax you have and then I can help you diagnose your truck. I will say this as well. There is a chance that the diagnosis will require special tools that only the dealer will have.

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Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain 04 wont run P0193 Code ... I have a 04 lb7 replaced all hoses and new cp3 now I have a no start throwing three codes p0700,p0090,p0193 checked all connections everything is hooked back up but I'm not getting any power on the harness going to cp3 any help would be ...P0090 duramax Equinox p0014 4l 2015 chevy equinox 2.4 p0017 - diagnostic network. P0420 Chevy Equinox Issue and Solutions to Fix Properly - UNCRD LAC P0191 equinox P0090 code after egr delete. P0420 chevy equinox issue and solutions to fix properlyFuel solenoid metering troublecodes pressure 2015 chevy equinox 2.4 p0017 - diagnostic ...Won't start P0090 code. 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.36 posts · Joined 2018. #1 · Jan 11, 2022. Hi 2017 duramax. All stock and recieved the P1050. Dealer said they replaced the DEF tank and sensor. After I picked up truck on next start dame code. Thoughts please. 2017 3500 High Country. Save Share.Changed fuel filter on Sunday last week and #6 glow plug. Had some water from bad diesel at caseys. It was throwing a p0087 before I changed filter. Now it's constantly throwing P0088!!! Charles Cox Kansas City. 2009 LT 2500 HD Duramax. 94,000 miles Stock no mods.

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.Some customers may comment that the MIL is illuminated. 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: Injection Quantity Too High.Feb 20, 2021 · LBZ unshakeable p0045 p0090. So, got my first duramax and have been chasing a turbo issue. Got some codes and ended up pulling the turbo and giving the vanes a good deep clean, put it back together and they were nice and smooth. I still had the codes so I swapped the VPS and the solenoid with known good ones.I have a 2006 a Chevy Silverado 3500 4wd 6.6 with the following codes:P0045:00 P2610:00 P0671:00 P0672:00 P0673:00 P0674:00 P0675:00 P0676:00 P0677:00 P0090:00Please help. Not sure what to do. Custome … read more09 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 …Graduates of coding bootcamps are gaining on computer science majors—just one example of how the working world is undergoing its biggest change in generations. The working world is...If you're getting a p0090 code, that's for the control circuit for the fuel pressure regulator. Check the plug for the regulator to be sure it doesn't have a pin that's pushed …Hi Guys, I have a 2001 2500HD Duramax that has been surging like its a governor problem. But the codes P0181 & P0090 keep coming up, so it makes sense that it's the fuel temp. sensor.To diagnose the P0090 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

Chevy / GMC Duramax 07.5-10 LMM Forums. 07.5-10 LMM Duramax Powertrain. Recurring P0090. Jump to Latest Follow 1K views 1 ...

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 ...Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain. P0045 Code! Jump to Latest Follow 10K views 4 ... checked it with my code reader and had p0045,p0046,p0234 and p2563. I replaced the vane sensor, the vgt solenoid and boost/map sensor and am now only getting p0045 code every time I drive it but the check engine only comes on ...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.Chevy / GMC Duramax 11-16 LML Forums. 11-16 LML Duramax Powertrain. Code p0098. Jump to Latest Follow 31K ... But I have a constant CEL code p0098. Intake air sensor #2 high. Everytime I clear the codes it returns. I found 3 different senors in the intake system have pulled all 3 out and ohmed them.Apr 26, 2011 · Condition/Concern: A dealer may need to perform a repair on the rubber portion of the fuel supply (suction) lines. The rubber section of the line could become kinked or collapse. Fuel lines that kink or collapse may induce a fuel system restriction (high vacuum gauge readings) or DTCs P0087, P0093, and/or P1093 to set.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.P0087 Code. I have chased the p0087 code for a number of years. The code appears when towing loads over 5000lbs up hills in 6th gear. 1. Replaced fuel rail plug with solid plug. 2. Did a fuel injector bypass test, all injectors performed as new / within spec. 3.Causes. A faulty fuel pressure regulator may damage the control circuit, which could result in a P0090 code. Wiring or Connector Problem: Communication problems with the …2008 2500 HD Duramax. Engine dies and goes into P0090 Fuel pressure regulator control circuit. I changed FPR and code still on doing same thing engine power reduced P0090. I checked harness everything seemed to be in good condition. I think I should go back and check harness.

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Sep 3, 2019 · 2008 2500 HD Duramax. Engine dies and goes into P0090 Fuel pressure regulator control circuit. I changed FPR and code still on doing same thing engine power reduced P0090. I checked harness everything seemed to be in good condition. I think I should go back and check harness.Mar 15, 2022 · Issues with the PCM can trigger the P0090 code. P0090 and Common Rail Fuel Systems. P0090 is a very important code on vehicles that use “common rail” fuel injection (CRI), such as light truck diesel engines, i.e., the GM Duramax Diesel, Ford Powerstroke, or Dodge Cummins.2004.5 lly Coding for P0090. First off. Sorry for posting yet another p0090 but none of the ones I saw were acting the same as mine. New to owning a diesel although i am a diesel mech for the navy they are stone age compaired to the beast in the drive way. Got the new truck, took it on a little under an hour test drive.lbz P0090. 2007 Classic LBZ. Check light came on, wouldn't go above 2 grand. Scanned, P0090 code, cleared it and drove it with the scanner plugged in, pressure was between 4000psi idle and 20000 psi pegged. Cleared code, changed fuel filter, drove for about 50 miles, code came back. Started cold this a.m., clattered like a cummins at idle after ...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.Popup is a no-code platform for the creation, management and hosting of online stores using a drag-and-drop visual editor. Two former Shopify employees think they have cracked the ...Good evening. I had a P0090 code come up on my 2005 GMC C4500. ... 2003 Chev C4500 6.6L LB7 Duramax manual transmission - engine starts and runs fine - truck pulls trailers - will be going along fine and all of a sudden engine cuts back and will not go over 2000 RPM ...On my duromax diersel 6.6 l my trouble codes are p0090, p0380, p0374…. WelcomeCustomer I will need you VIN to determine the year and the model of duramax you have and then I can help you diagnose your truck. I will say this as well. There is a chance that the diagnosis will require special tools that only the dealer will have. ….

How to remove and replace your MAP Sensor. Hope this helps please leave a comment and let me know how I did! Thanks#Duramax #GMC #LLY #DIESEL #TOWVEHICLE #ED...Learn the difference between source code and object code within computer programming. Each term has its own use; deciphering them can be difficult at first, but with this easy-to-f...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 …P0090 Fuel Pressure Regulator Control Circuit. P0193 Fuel Rail Pressure (FRP) Sensor Circuit High Voltage. C0040 Right Front Wheel Speed Sensor Circuit. Only one you said you touched was FPR circuit but again something is going on to set all those off and only you can retrace your steps and solve it.The ECM uses the fuel rail pressure sensor to continuously monitor fuel pressure. If the ECM detects a problem, such as an unexpected increase or decrease in fuel pressure, or excessive or insufficient fuel pressure, that is, higher or lower than commanded, it will set diagnostic trouble code (DTC), DTC P0089 - "Fuel Pressure Regulator ...Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain Another P0089/P0090 & P1093 thread...with data, need some input ... Was pulling Jeep up bumpy, dirt hill at local OHV park and truck started throwing these codes (P0089/P0090 & sometimes also P1093) Brought the truck home, and changed the fuel …2008 2500 HD Duramax. Engine dies and goes into P0090 Fuel pressure regulator control circuit. I changed FPR and code still on doing same thing engine power reduced P0090. I checked harness everything seemed to be in good condition. I think I should go back and check harness.D.G Yuengling & Son Inc. the oldest brewery in America, has unveiled the world’s largest QR code grown from crops. D.G Yuengling & Son Inc. the oldest brewery in America, has unvei... P0090 code duramax, 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 information while continuing the push for new and exciting tech on the Duramax platform., Most of the time, the solution to P0046 is to replace a component of the turbo/supercharger or the whole boosting system. Replacing a booster or sensor won't be cheap. Even a small sensor would cost around $200-$400. And a new VGT or turbo boost can be found in the $1000-$1800 range depending on your car model., Sep 17, 2012. 4. 0. 1. Nov 7, 2014. #1. Got an lml in the shop that keeps getting code p128E and going into reduced power. Any idea on what the gm fixes are for this? Truck just had a complete new fuel system installled due to cp4 crapping out and the install work was less than good., Feb 2, 2013. 12. 0. May 11, 2014. #1. Ok guys, been searching for 2 days. I seem to find a lot of dead end threads. I can't believe these past problems weren't fixed. I'm sure they …, 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., Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain what code is a b0090 ... There is alot of info for that code. By changing injectors what would cause this code to come up. ... Are you looking for B0090 or P0090? DMax BLACK '05 LS CC LB @ 100K miles, factory 2" lift, HID's Banks Economind, IQ, …, 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 second ¼ mile ..., 03 duramax, code p0090, engine won't run over 2k rpm. code. ... gaskets went had heads tested ok got it all done but won't start has pulse at inj but can't get fuel rail pressure got code p0090 with scanner on it ..., Won't start P0090 code. 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., Most of the time, the solution to P0046 is to replace a component of the turbo/supercharger or the whole boosting system. Replacing a booster or sensor won't be cheap. Even a small sensor would cost around $200-$400. And a new VGT or turbo boost can be found in the $1000-$1800 range depending on your car model., No problem changing them out but I put everything back together and I immediately get a P0090 code when I turned the truck back on. ... P0090 diag runs when the key is on and the commanded FRP regulator current is between 400-1500mA. ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech ..., Besides this is the first time I have seen a code that comes up in the DTC lookup that made any sense. 2016 F-150 Limited Edition 2015 ZL1 Camaro, Ashen Grey, Full Load, Stock @ 580 HP:clap: ... Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! Show Less ., According to DTC P0090 the ECM Sources Battery Voltage through the ECM to the FPR. Step 7 is a test for this. And the ECM has a CONTOL circuit that furnishes a ground, which is variable and the current through the. FPR is between 40ma to 1500ma. Step 8 is a test to see if there is a OPEN control circuit between the. FPR and the ECM., 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)., 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 more, I can look up any code instead of calling the dealer. List: DTC C0323 T-Case Lock Circuit Low DTC C0324 T-Case Lock Circuit High DTC C0550 ECU Malfunction DTC P0087 Fuel Rail Pressure (FRP) Too Low ... DTC P0090 Fuel Pressure Regulator Control Circuit DTC P0093 Fuel System Large Leak Detected ... Duramax Diesel Service Guide - How to Replace ..., The P0091 DTC code denotes a possible issue with the control circuit of the fuel pressure regulator, which may interfere with effective fuel pressure regulation in the fuel system. It's critical to have the problem quickly diagnosed and fixed by a certified automobile mechanic if you see this code. Maintaining engine performance, fuel ..., Replaced Injectors on 2001 Duramax 6.6 and can not get it to run properly. I keep getting P0088 P0089 and P0090 codes. The Fuel rail reads 25,243 psi I replaced the fuel rail presser sensor and also t … read more, I am getting a p0090…. I have a 2007 c 5500 6.6 lmm. I am getting a p0090 code from my Tech 2 code reader. My FPR doesnt seem to be fuctioning at all. I get a high fuel rail pressure at idle until pressure goes over relief causing a knock and rough idle. When I observe desiered fuel pressure and actual fuel rail pressure, this is confirmed., Chevy / GMC Duramax 07.5-10 LMM Forums. 07.5-10 LMM Duramax Powertrain CEL codes help! Jump to ... I've been getting there codes on my 2008 lmm. P2185 P011A I've replaced the temp sensor by the thermostat. The code is still showing. ... P0090 P0097 P0098 P0101 P0102 P0103 P0106 P0107 P0108 P0112 P0113 P0116 P0117 P0118 P122A P0128 P150C P154A ..., Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain Another P0089/P0090 & P1093 thread...with data, need some input ... Was pulling Jeep up bumpy, dirt hill at local OHV park and truck started throwing these codes (P0089/P0090 & sometimes also P1093) Brought the truck home, and changed the fuel pressure regulator AND the fuel ..., P0045 is a turbo solenoid circuit code. Disconnect the solenoid and put a test lamp across the solenoid connector when the engine coolant temp is colder than 65C, then start the engine and let it warm up to 74C. When the engine coolant reaches approximately 74C the ECM will initiate a TC Learn and the test lamp will flash ON and OFF., P0090 Chevrolet Code - Fuel Pressure Regulator Control Circuit - Code Popularity: 36,198 Views - Repair Importance Level: 3/3 - Repair Difficulty Level: 3/3. Table of contents. Created and updated by William Orellana on May 16, 2022. Possible Causes;, Replace ECM. Symptoms worsen. Engine is hard to start, hesitates, blows white smoke, and is only making 2000-3000psi of fuel pressure all without throwing a code. When the P0090 code is present, the truck will limp and drive somewhat "normal" but still has a reduced fuel pressure of 2000-3000psi., The P0090 code has to be diagnosed using a methodical process: OBD-II Scanner: A skilled mechanic will access the exact code and any associated codes recorded in the ECM using an OBD-II scanner. Visual check: The fuel pressure regulator, along with any related wiring and connectors, will undergo a comprehensive visual check by the mechanic. ..., Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain. P0045 Code! Jump to Latest Follow 10K views 4 ... checked it with my code reader and had p0045,p0046,p0234 and p2563. I replaced the vane sensor, the vgt solenoid and boost/map sensor and am now only getting p0045 code every time I drive …, 2018 sierra 5.3l P00C8 and P0090. 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 ..., May 28, 2013 · 156 posts · Joined 2011. #2 · May 28, 2013. Sorry. Code is p0090. 06 GMC duramax lbz. 4in rancho lift, 35" dunlop fierce attitudes, 4" downpipe back exhaust, banks air intake, Russell ss braided brake lines, efi and edge insight cts, energy suspension controll arm and sway bar bushings. 2010 Lexus IS 250 bone stock., ok here's the story. i just did a PPE dual cp3 kit on an 08 LMM. truck was fine before this, no codes at all. we put the kit on and now there is a hard p0090 code. dan and i have been racking our brain the past 3 days and nothing has worked. this code comes on as soon as the key is turned on, you clear it and it come back right away. at idle FP is 11k …, Nov 29, 2019 · 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., Get the most recent info and news about Let's Start Coding on HackerNoon, where 10k+ technologists publish stories for 4M+ monthly readers. Get the most recent info and news about ..., 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., Code p0073. Just put new mirrors on my 2015 dura max and now have this code for ambient air temp. Is this related to the mirror swap or something else. The Ambient Air Temperature Sensor located in the passenger outside mirror on trucks equipped with the 6.6L diesel engine is not used for the ambient temperature display that is located on the ...