P0172 Diagnostic Trouble Code Discussion for March 2019
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2005 Ford F-150 Lariat 5.4L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, MIL Lamp on, Backfire in intake VIN: 1FTPX12595 P0172: Rich Bank 1. ... me up. Originally this truck came to me in December with rich DTC's, the customer had attempted to repair this over a period of time. He replaced the injectors, plugs, coils and MAF. He also had the PCM reflashed. The upstream O2 sensors were non resp... |
March 07, 2019 |
