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P0172 Diagnostic Trouble Code Discussion for November 2014

Fuel System Rich (Bank 1)

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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2002 Mazda B3000 DS 3.0L Excessive Emissions, MIL Lamp on VIN: 4F4YR16U62
P0172: Adaptive Fuel Trim Too Rich (Bank 1). ... eating my lunch, customer just buy the truck, so he bring it to the shop because has rough idle, but no SES ON ( check engine soon ) so I connect the scanner to check the data, and I see the my upstream o2 sensor at bank 1 don't switch,but the computer is ...
November 08, 2014
2008 Jeep Compass Limited 2.4L Surge, MIL Lamp on VIN: 1J8FT57W78
P0172: Rich. ... codes-- got P2017 and P0172 (rich). Checked basics (wiring and connection to actuator, vacuum leaks (none), etc.) Cleared codes and road-tested. No codes. When car was picked up, MIL was back on--checked codes, and just P2017. Cleared again, and MIL (and j...
November 09, 2014
2000 Chrysler Cirrus LX 2.4L Misfire, MIL Lamp on VIN: 1C3EJ46X7Y
P0172: Fuel System Rich. Vehicles fuel trims will be fine then around 1500 rpm under a load feels like the vehicle misfires and LTFT goes immediately to -25. Fuel trims will not go to -25 until that misfire is felt. There is no counts for misfires all at 0 and doing a cylinder balance...
November 18, 2014