P0172 Diagnostic Trouble Code Discussion for September 2019
Fuel System Rich (Bank 1)
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| 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 |
