P0172 Diagnostic Trouble Code Discussion for August 2006
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 1999 Lexus RX300 3.0L Excessive Emissions, Misfire, Poor Fuel Economy, lacks power VIN: JT6HF10U3X P0172: rich. This vehicle has negative fuel trims on bank 2 and positive trims on bank 1. I tried swapped af sensors from side to side and trims remained the same. I have replaced MAF and 1 igntion coil. This suv has no power sounds like pinging under load. I have checked ... |
August 10, 2006 | |
| 1999 Toyota 4Runner Limited 3.4L Hesitation, Cuts out, Stall, low power VIN: JT3HN87R0X P0172: Fuel System Too Rich (Bank 1). This for afriend, this truck will hardly accell. when you mash the gas it dies. If you spray ex fuel in it ,it will rev fine.He has checked for codes and all he gets is a po172.It starts fine and idles fine but it just want go.If you mash gas pedal to floor it... |
August 10, 2006 | |
| 2002 Ford E-150 Econoline 5.4L MIL Lamp on VIN: 1FMRE112HB P0172: system too rich b1. Ok I have searched Arcives on this one and have found nothing. I suspect that the computer requires re-flashed but have not found anything to support this info. I have a rich condition happening and mabey it is related to fuel pressure. I have 53 psi running @... |
August 11, 2006 | |
| 2002 Ford E-150 Econoline 5.4L MIL Lamp on VIN: 1FMRE112HB P0172: system too rich b1. Ok I have searched Arcives on this one and have found nothing. I suspect that the computer requires re-flashed but have not found anything to support this info. I have a rich condition happening and mabey it is related to fuel pressure. I have 53 psi running @... |
August 12, 2006 | |
| 1997 GMC Savana 1500 5.7L Poor Fuel Economy, MIL Lamp on VIN: 1GDFG15R4V P0172: Fuel Trim System Rich (Bank 1). the van came back in with the s.e.s light on with po172 and 175 stored. i checked spider for leakdown with return line blocked off. very slow and slight. with the van running fuel trims are. short terms b1 125 b2 127 long terms b1 110 b2 109 so the pcm is subt... |
August 15, 2006 | |
| 2002 Subaru Outback 2.5L MIL Lamp on VIN: 4S3BH66552 P0172: Fuel System Too Rich (Bank 1). ... recurring P0172. Running the appropriate diag tests reveals no problems. Could a faulty A/F sensor cause this code? I've got no way to read a Subaru A/F sensor - the red brick doesn't like them! And I can't find any electrical specs to try to read voltage ... |
August 22, 2006 | |
| 1998 GMC Yukon SLE 5.7L Excessive Emissions, MIL Lamp on VIN: 1GKEC13R7W P0172: Fuel Trim System Rich (Bank 1). ... frame data for p0172 and P0175 rich bank 1 and rich bank 2 No other codes no missfires recorded. The light had went off. The Freeze frame data showed a long term fuel trim of 113. The code should set at 100. I cleaned the injectors, replaced the pcv valve ... |
August 25, 2006 | |
| 2001 Chevrolet Venture LS 3.4L MIL Lamp on VIN: 1GNDX03E31 P0172: Fuel Trim System Rich (Bank 1). van has p0172-rich code set and is stumbling at cruising speeds intermitenly. have went through all tests in flow chart and are finding no problems. any help would be great i have hit a wall |
August 26, 2006 |
