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P0172 Diagnostic Trouble Code Discussion for October 2004

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2001 Infiniti QX4 3.5L MIL Lamp on VIN: JNRDR09Y61
P0172: Fuel Trim Rich (Bank 1). ... light on. retrieved new codes of p0172,p0174 customer obviously feels it my fault but i have driven the car and it shows fuel trims of 33.1 on the long term on both banks. have cleared and redrove car, you can watch it come back up while driving on the hig...
October 14, 2004
1996 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VWRA81H1T
P0172: Fuel Trim System too Rich Bank 1. DOES ANYONE KNOW WHAT THIS CODE 00545 MEANS OR HOW TO DIAGNOSE IT? I HAVE CLEARED IT AND IT KEEPS COMMING BACK WITH THE SAME CODES tHE AIR MASS METER ON THIS ONE IS $500.00 WOW... THANK YOU FOR YOUR HELP... PLEASE SEND REPLIES TO [...]
October 21, 2004
2002 Subaru Forester S 2.5L MIL Lamp on, stumble/stutter VIN: JF1SF65652
P0172: Fuel System Too Rich (Bank 1). ... that has an intermittent problem. About every 50 to 75 miles, the MIL will come on and store a code P0172 - (Fuel trim malfunction, A/F too rich). Also intermittently, the vehicle will stumble for about 1 - 2 seconds between 2800 and 3300 RPM. We had repla...
October 22, 2004
1997 Ford Expedition XLT 5.4L Misfire, MIL Lamp on VIN: IFMFU18L6V
P0172: testing and results. ... p01131,p0171,p0172.idle surge and missing.so far i check for vacuum leak.i could not find any.i know smoke macine is the best way check for vacuum leak. unfortunately i dont have.check fitting at pressure regulator is ok.all va...
October 23, 2004
1999 Mazda Protege DX 1.6L Excessive Emissions, MIL Lamp on VIN: JM1BJ2Z28X
P0172: Adaptive Fuel Trim Too Rich (Bank 1). Hi guys this is my first post so bear with me. I had a 99 protoge come in with mil on, tested 02,fuel pressure,tps,vacum(purge valve etc.) found a bad pcv valve. cleared code and shipped car. car came back a couple of weeks later with same code. I found cyl #3...
October 23, 2004
2001 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VWSS29MXI
P0172: feul trim bank 1 system too rich. oxy sensor reacting good car has good performance i found a little black soot at the tail pipe i test drove the car a few times getting parts but did not have the ml light come on car belongs to a dealer they may be starting the car to show it and not driving ...
October 25, 2004
1997 Ford Explorer Sport 4.0L MIL Lamp on, stalls cold VIN: 1FMCU24X0V
P0172: O2 correcting lean for a rich condition bank 2. This truck came in a week ago and we replaced the o2 sensors and put some fuel injector cleaner in the tank, cleared the codes(172&175). This was a customer diagnosis so we did not do any diagnostic work then. This week the truck is back in with the same...
October 30, 2004
2001 Infiniti QX4 3.5L MIL Lamp on VIN: JNRDR09Y61
P0172: Fuel Trim Rich (Bank 1). ... light on. retrieved new codes of p0172,p0174 customer obviously feels it my fault but i have driven the car and it shows fuel trims of 33.1 on the long term on both banks. have cleared and redrove car, you can watch it come back up while driving on the hig...
October 14, 2004
1996 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VWRA81H1T
P0172: Fuel Trim System too Rich Bank 1. DOES ANYONE KNOW WHAT THIS CODE 00545 MEANS OR HOW TO DIAGNOSE IT? I HAVE CLEARED IT AND IT KEEPS COMMING BACK WITH THE SAME CODES tHE AIR MASS METER ON THIS ONE IS $500.00 WOW... THANK YOU FOR YOUR HELP... PLEASE SEND REPLIES TO [...]
October 21, 2004
2002 Subaru Forester S 2.5L MIL Lamp on, stumble/stutter VIN: JF1SF65652
P0172: Fuel System Too Rich (Bank 1). ... that has an intermittent problem. About every 50 to 75 miles, the MIL will come on and store a code P0172 - (Fuel trim malfunction, A/F too rich). Also intermittently, the vehicle will stumble for about 1 - 2 seconds between 2800 and 3300 RPM. We had repla...
October 22, 2004
1997 Ford Expedition XLT 5.4L Misfire, MIL Lamp on VIN: IFMFU18L6V
P0172: testing and results. ... p01131,p0171,p0172.idle surge and missing.so far i check for vacuum leak.i could not find any.i know smoke macine is the best way check for vacuum leak. unfortunately i dont have.check fitting at pressure regulator is ok.all va...
October 23, 2004
1999 Mazda Protege DX 1.6L Excessive Emissions, MIL Lamp on VIN: JM1BJ2Z28X
P0172: Adaptive Fuel Trim Too Rich (Bank 1). Hi guys this is my first post so bear with me. I had a 99 protoge come in with mil on, tested 02,fuel pressure,tps,vacum(purge valve etc.) found a bad pcv valve. cleared code and shipped car. car came back a couple of weeks later with same code. I found cyl #3...
October 23, 2004
2001 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VWSS29MXI
P0172: feul trim bank 1 system too rich. oxy sensor reacting good car has good performance i found a little black soot at the tail pipe i test drove the car a few times getting parts but did not have the ml light come on car belongs to a dealer they may be starting the car to show it and not driving ...
October 25, 2004
1997 Ford Explorer Sport 4.0L MIL Lamp on, stalls cold VIN: 1FMCU24X0V
P0172: O2 correcting lean for a rich condition bank 2. This truck came in a week ago and we replaced the o2 sensors and put some fuel injector cleaner in the tank, cleared the codes(172&175). This was a customer diagnosis so we did not do any diagnostic work then. This week the truck is back in with the same...
October 30, 2004