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P0172 Diagnostic Trouble Code Discussion for May 2011

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2004 Mazda RX-8 1.3L Surge, Poor Fuel Economy, MIL Lamp on VIN: JM1FE17244
P0172: Adaptive Fuel Trim Too Rich (Bank 1). Hello IATNrs: have here this one rotary non turbo,genisys engine, I have check all the basics, no vac leaks,no misfires, fuel pressure normal all PIDs normal,Removed injectors and check for leaks,none found, connectors to injector are in correct place, I follo...
May 04, 2011
2004 Mazda RX-8 1.3L Surge, Poor Fuel Economy, MIL Lamp on VIN: JM1FE17244
P0172: Adaptive Fuel Trim Too Rich (Bank 1). Hello IATNrs: have here this one rotary non turbo,genisys engine, I have check all the basics, no vac leaks,no misfires, fuel pressure normal all PIDs normal,Removed injectors and check for leaks,none found, connectors to injector are in correct place, I follo...
May 08, 2011
2004 Chevrolet Express 1500 5.3L MIL Lamp on VIN: 1GCFG15T84
P0172: Fuel Trim System Rich (Bank 1). This van came in for state inspection and failed for the mil being on with codes p0174 & p0171. Ive smoke the intake checked all 02 sensors, mass airflow sensor, fuel pressure (i even checked the amps the pump was pulling 9.5amp)and i noticed that intake g...
May 10, 2011
2008 Land Rover Range Rover Sport Supercharged 4.2L Misfire, MIL Lamp on VIN: SALSH23418
P0172: System too richBank 1. ... felt for at least 30 seconds. It shows in the code P0307, Mode 6 data(only cylinder #7).Once it clears up(within a minute-max) it is not there til the next cold start or if it sits 4 hours or more. We have swapped coils and spark plugs and still the same m...
May 10, 2011
2006 Land Rover Range Rover HSE 4.4L MIL Lamp on VIN: SALMF15496
P0172: Rich Code - Bank 1. Hello everyone, got this Rover that is giving both lean and rich codes. Smoke test good. Replaced front O2 sensors, still have problem. Replaced MAF, still have problem. Reflash ECU, through dealer, as per tsb's. Still have problem. Fuel Trims: Short are about...
May 12, 2011
1996 Ford F-150 Eddie Bauer 4.9L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTEF14Y8T
Vehicle came in with the above codes. Before much physical testing I looked at it with my modis. I keep getting this annoying vehicle battery low message even with the truck running on Modis. Aside from that I reset the fuel trims which were -22 LTFT. When I s...
May 17, 2011
1996 Ford F-150 Eddie Bauer 4.9L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTEF14Y8T
Vehicle came in with the above codes. Before much physical testing I looked at it with my modis. I keep getting this annoying vehicle battery low message even with the truck running on Modis. Aside from that I reset the fuel trims which were -22 LTFT. When I s...
May 18, 2011
2000 Lincoln LS 3.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LNHM87A6Y
P0172: System too rich bank 1. Suspect I have a valve train/timing chain problem and customer wants to repair vehicle. Would like a little input prior to tearing into the engine -- major labor involved. Vehicle has poor idle due to misfire but drives well. This is the first 3.9L we've worke...
May 24, 2011
2009 Saturn Aura XE 2.4L Excessive Emissions, MIL Lamp on VIN: 1G8ZS57B29
P0172: Bank 1 sys. too rich. Since we just replaced the exhaust manifold we thouroly checked over our work and everything looks fine. I reset the pcm several times by the use of a scan tool and by discnecting the battery.This code continues to return.At idle the long term fuel trims are n...
May 26, 2011
2004 Nissan Cedric 2.5L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: MY34-12452
P0172: System to rich bank one. Car came to the shop droping black smoke through the exhaust pipe. Smoke's bad when you rev it to about 300rpm. It is burning a very rich mixture on both banks. I replace the ECM, o2 sensor and spark plugs same thing. It have a high perssure puump on the engin...
May 27, 2011
2004 Mazda RX-8 1.3L Surge, Poor Fuel Economy, MIL Lamp on VIN: JM1FE17244
P0172: Adaptive Fuel Trim Too Rich (Bank 1). Hello IATNrs: have here this one rotary non turbo,genisys engine, I have check all the basics, no vac leaks,no misfires, fuel pressure normal all PIDs normal,Removed injectors and check for leaks,none found, connectors to injector are in correct place, I follo...
May 04, 2011
2004 Mazda RX-8 1.3L Surge, Poor Fuel Economy, MIL Lamp on VIN: JM1FE17244
P0172: Adaptive Fuel Trim Too Rich (Bank 1). Hello IATNrs: have here this one rotary non turbo,genisys engine, I have check all the basics, no vac leaks,no misfires, fuel pressure normal all PIDs normal,Removed injectors and check for leaks,none found, connectors to injector are in correct place, I follo...
May 08, 2011
2004 Chevrolet Express 1500 5.3L MIL Lamp on VIN: 1GCFG15T84
P0172: Fuel Trim System Rich (Bank 1). This van came in for state inspection and failed for the mil being on with codes p0174 & p0171. Ive smoke the intake checked all 02 sensors, mass airflow sensor, fuel pressure (i even checked the amps the pump was pulling 9.5amp)and i noticed that intake g...
May 10, 2011
2008 Land Rover Range Rover Sport Supercharged 4.2L Misfire, MIL Lamp on VIN: SALSH23418
P0172: System too richBank 1. ... felt for at least 30 seconds. It shows in the code P0307, Mode 6 data(only cylinder #7).Once it clears up(within a minute-max) it is not there til the next cold start or if it sits 4 hours or more. We have swapped coils and spark plugs and still the same m...
May 10, 2011
2006 Land Rover Range Rover HSE 4.4L MIL Lamp on VIN: SALMF15496
P0172: Rich Code - Bank 1. Hello everyone, got this Rover that is giving both lean and rich codes. Smoke test good. Replaced front O2 sensors, still have problem. Replaced MAF, still have problem. Reflash ECU, through dealer, as per tsb's. Still have problem. Fuel Trims: Short are about...
May 12, 2011
1996 Ford F-150 Eddie Bauer 4.9L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTEF14Y8T
Vehicle came in with the above codes. Before much physical testing I looked at it with my modis. I keep getting this annoying vehicle battery low message even with the truck running on Modis. Aside from that I reset the fuel trims which were -22 LTFT. When I s...
May 17, 2011
1996 Ford F-150 Eddie Bauer 4.9L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTEF14Y8T
Vehicle came in with the above codes. Before much physical testing I looked at it with my modis. I keep getting this annoying vehicle battery low message even with the truck running on Modis. Aside from that I reset the fuel trims which were -22 LTFT. When I s...
May 18, 2011
2000 Lincoln LS 3.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LNHM87A6Y
P0172: System too rich bank 1. Suspect I have a valve train/timing chain problem and customer wants to repair vehicle. Would like a little input prior to tearing into the engine -- major labor involved. Vehicle has poor idle due to misfire but drives well. This is the first 3.9L we've worke...
May 24, 2011
2009 Saturn Aura XE 2.4L Excessive Emissions, MIL Lamp on VIN: 1G8ZS57B29
P0172: Bank 1 sys. too rich. Since we just replaced the exhaust manifold we thouroly checked over our work and everything looks fine. I reset the pcm several times by the use of a scan tool and by discnecting the battery.This code continues to return.At idle the long term fuel trims are n...
May 26, 2011
2004 Nissan Cedric 2.5L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: MY34-12452
P0172: System to rich bank one. Car came to the shop droping black smoke through the exhaust pipe. Smoke's bad when you rev it to about 300rpm. It is burning a very rich mixture on both banks. I replace the ECM, o2 sensor and spark plugs same thing. It have a high perssure puump on the engin...
May 27, 2011