2002 GMC Yukon Denali "obdii code p0171" Questions

...P0171 and P0174 popped up on the OBDII. Replaced the MAF sensor, reset the the PCM and drove it. Sure enough the SES light came back on. Tested and the same two codes pop up. Whats next? 2002 GMC ...

code book with the OBDII. If not take the codes to a garage near you and ask them, they might give you your answers. If not, I will bookmark this page and see if I can find my book and get back to you

What are the fixes for codes P0171 & P0174 on '03 Mercury Sable 3.0L engine? http://www.obd-codes.com/p0171 http://www.obd-codes.com/p0174 Check the above articles for help with these OBDII codes.

...Condition P0171 JEEP - Fuel System 1/1 Lean P0174 JEEP - Fuel System 2/1 Lean P0306 JEEP - Cylinder 6 Misfire Fault Detected OBDII Codes Engine Light Repair and Diagnostic Information AutoCodes ...

...code P0171 OBDII code for lean condition on bank one. Possible problems are vacuum leak a hose or intake gasget,, bad o2 sensor or wiring problem. An "under reporting" Mass Air Flow Sensor can be a ...

...OBDII scan read code P0236 y P0171 yesterday today read P0237 y P0101 whats the problem?? Is a Volvo S40 2002 1.9T P0236 Turbocharger Boost Sensor A Circuit Range/Performance P0171 System too Lean ...

...code on my 2005 volkswagon passat what does that mean P0171 - Fuel Trim, Bank1 System too Lean VW DTC 16555 (P0171) - Fuel Trim, Bank1 System too Lean By only pulling battery power from the ECU ...

...> diagnose > p0171 Jul 10, 2021 - The OBDII trouble code P0171 - System Too Lean (Bank 1) means that the engine air-fuel mixture is too lean, or there is too much air and too

...OBDII BRINGS UP A CODE OF P0171 WHICH IS SYSTEM TOO LEAN. I HAVE CHANGED TO O2 SENSOR AND SEEMS TO RUN BETTER BUT STILL COME UP LEAN ON BANK 1. ANY SUGGESTIONS? SHOP SAYS IT WOULDNT BE THE FUEL PUMP ...

...and got a diagnostic test on my 1996 ford crown vic and they gave me these numbers P1131,P1151,P0171, and P0174 can anyone tell me what they mean you can look it up on "obdii" trouble codes web ...