P0172 Diagnostic Trouble Code Discussion for October 2005
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2001 Saturn SL1 1.9L Hesitation, MIL Lamp on, power loss VIN: 1G8ZH52881 P0172: Fuel Trim System Rich (Bank 1). ... lack of power issue. There was also some irratic running & shifting. Initial scan showed a code P0172 (rich conditions) Both O2 sensors seemed to working correctly, with both voltage readings & graphing. Fuel pressure was 58 lbs. We replaced the fu... |
October 04, 2005 | |
| 2000 Volkswagen Beetle GLS 2.0L MIL Lamp on VIN: 3VWCA21C2Y P0172: Long term fuel trim bank 1 too rich. This is just one particular car but we have about 4 of these Beetles that are setting these codes on a regular basis. Some cars will have both codes stored. Others one code or the other. We have tried oxygen sensors, checked fuel pressure, checked regulators, ... |
October 05, 2005 | |
| 1995 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNDT13WXS P0172: rich limit. hi guys hope you can help truck came in with 2 rich limit codes in it fuel pressure ok but not holding. poped the upper intake to find the regulator leeking replaced the reg cleared codes and all was well for a week now the stupid thing is back with a po420 ca... |
October 14, 2005 | |
| 1995 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNDT13WXS P0172: rich limit. hi guys hope you can help truck came in with 2 rich limit codes in it fuel pressure ok but not holding. poped the upper intake to find the regulator leeking replaced the reg cleared codes and all was well for a week now the stupid thing is back with a po420 ca... |
October 15, 2005 | |
| 1997 Chevrolet Cavalier 2.2L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: IGIJCI246V P0172: Fuel System Rich (Bank 1). The problem is rough idling, sometimes severe hesitation, sometimes slight hesitation, and occasional stall. The fuel trims are always extremely low (-40) indicating a correction for a rich mixture which seems to be the case, but not to the point of smoking bl... |
October 21, 2005 | |
| 1998 Dodge Neon High Line 2.0L Poor Idle Quality VIN: 1P3ES42C6W P0172: Fuel System Rich (Bank 1). Car idles very rich all the time. Runs down the road fine oxygen sensor switches, injector on time seems normal even going to zero under decel conditions. Map sensor tests ok has 3.8v at 5" vacuum and 1.3v at 20" vacuum. Injector on time is hi at 3.5-5... |
October 26, 2005 |
