P0172 Diagnostic Trouble Code Discussion for February 2023
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2010 Chevrolet Equinox LS 2.4L MIL Lamp on VIN: 2CNALBEW0A P0172: Fuel System Rich Bank 1. Scoped bank 1 sensor 1 with lab scope. Stays rich. Found a number of help posts here with same problem. One I found the tech removed the oil fill cap and fuel trim numbers went back to normal. He posted no fix. Removed oil fill cap and fuel trim numbers on... |
February 07, 2023 |
