P0172 Diagnostic Trouble Code Discussion for December 2020
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2005 Dodge Ram 1500 ST 3.7L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 1D7HA16K95 P0172: . This thing is driving me nuts. It will code for fuel system too rich. Watching O2, bank 1 is pulling fuel [negative 25] 0n long term, while bank 2 stays around 0. I have checked injectors[no drips], replaced both o2 on bank 1. fuel pressure is steady 58psi... |
December 01, 2020 |
