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P0172 Diagnostic Trouble Code Discussion for September 2019

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1998 Ford F-150 Lariat 5.4L MIL Lamp on, Running rich VIN: 1FTRX18LXW
P0172: Rich bank 1. ... check engine light is on. Found codes p0172 and p0175 stored in pcm. Fuel trims pegged at about -20% on both banks. Whenever driving vehicle fuel trims will go slightly positive about +5-10% on both banks. But whenever you let off the gas or come to a...
September 10, 2019
2007 Toyota Camry XLE 2.4L MIL Lamp on VIN: 4T1BE46K77
P0172: Fuel System Too Rich (Bank 1). ... Check engine light keeps coming on with Codes P0101 and p0172. I have been fighting this for awhile. It used to take weeks between occurrences but has become more frequent. The Freeze Frame data shows the MAF reading v...
September 12, 2019
2004 Ford Ranger Edge 3.0L Poor Idle Quality VIN: 1FTYR10U94
P0172: Rich bnk 1. ... skipping bad. I took a compression test and two cylinders did not have compression. After removing heads I only found 1 broken valve spring. No burned valves to my surprise. I had the heads worked and a valve job and replaced broken spring. The truck ...
September 13, 2019
2004 Ford Ranger Edge 3.0L Poor Idle Quality VIN: 1FTYR10U94
P0172: Rich bnk 1. ... skipping bad. I took a compression test and two cylinders did not have compression. After removing heads I only found 1 broken valve spring. No burned valves to my surprise. I had the heads worked and a valve job and replaced broken spring. The truck ...
September 17, 2019
2013 Honda Fit 1.5L MIL Lamp on VIN: JHMGE8H31D
P0172: Rich air fuel mixture. Hello All, Vehicle appears to be running rich. stft -22% and ltft -20%. Downstream HO2S reads around .04VDC @ idle. PCM does respond to rich and lean conditions. MAF is reading about 2.5g/s @ idle and around 7g/s @ 2000 rpm (high). Pinched purge hose (no h...
September 18, 2019
2007 Toyota Camry XLE 2.4L MIL Lamp on VIN: 4T1BE46K77
P0172: Fuel System Too Rich (Bank 1). ... shape and runs very well, but the Check engine light keeps coming on with Codes P0101 and p0172. I have been fighting this for awhile. It used to take weeks between occurrences but has become more frequent. The Freeze Frame data shows the MAF reading v...
September 18, 2019