P0172 Diagnostic Trouble Code Discussion for October 2018
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2005 Mercedes-Benz C320 3.2L MIL Lamp on VIN: WDBRN64J75 P0172: System rich bank 1. We have an odd one here and hoping a benz tech can shed some light. Fuel trims -35 rich both banks. Resetting fuel adaptions causes the front 02 sensors to peg at over 800 mv and short term trims go to -25 then long term trims after that go -20 -25. Normal... |
October 18, 2018 | |
| 2006 Pontiac Torrent 3.4L Poor Idle Quality, Cuts out VIN: 2CKDL63FX6 P0172: Fuel Trim System Rich. The customer drove this car into my shop.the car was not idling properly when you start the car it will run for afew minutes and shut down . There was a check engine lightand the code was po172.i clean the throttle body and replace the mass air flow sensor... |
October 25, 2018 |
