P0172 Diagnostic Trouble Code Discussion for April 2017
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2010 Chevrolet Impala LT 3.5L Excessive Emissions, Extended Crank VIN: 2G1WB5EK6A P0172: . ... Is storing code P0172. Fuel pressure = ok, no evidence of a fuel injector concern. The fuel compositions shows 43% alcohol and the fuel trim is in the -20 range. We have attempted to do a fuel composition reset with the Tech2 but when we get to that point ... |
April 04, 2017 | |
| 2002 Ford Expedition Eddie Bauer 5.4L MIL Lamp on VIN: 1FMPU18L22 P0172: Bank 1 rich. OK guys need help on this one . vehicle came in with all new injectors and coils put on previously . I read the data , mass airflow sensor operates fine oxygen sensors operate fine, fuel pressure is within specs , air filter is not clogged , but yet this vehic... |
April 15, 2017 | |
| 2002 Ford Expedition Eddie Bauer 5.4L MIL Lamp on VIN: 1FMPU18L22 P0172: Bank 1 rich. OK guys need help on this one . vehicle came in with all new injectors and coils put on previously . I read the data , mass airflow sensor operates fine oxygen sensors operate fine, fuel pressure is within specs , air filter is not clogged , but yet this vehic... |
April 16, 2017 | |
| 2009 Chevrolet HHR LS 2.2L Poor Idle Quality, Stall, MIL Lamp on VIN: 3GNCA13B49 P0172: Rich condition up O2 reads cycles quick normal rear O2 stays around 750mv. Engine appears to lean misfire at idle only. Highway speeds ok. IDLE: Long term fuel trim -15% Short term fuel (hovers around zero) injection MS pulse 1.7 engine load 24% Purge command 7% Upstream O2 rapid between 100mv and 850mv Downstream O2 steady rich aro... |
April 19, 2017 | |
| 2009 BMW 335i 3.0L Misfire VIN: WBAWL73509 P0172: Rich bank 1. Hello everyone and thanks for the help on this one. I have this turbocharged 3.0 BMW in that is running pretty badly. The vehicle lacks power at lower acceleration and falls rich (short terms -31) when under a moderate load on bank 1. There are various codse 2... |
April 20, 2017 |
