P0172 Diagnostic Trouble Code Discussion for March 2011
Fuel System Rich (Bank 1)
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P0172
| Help Request | Posted | |
| 2004 Ford E-350 Super Duty 5.4L MIL Lamp on VIN: 1FDWE35L64 P0172: Bank 1 To rich. Ok this vehicle is maxing out the negative fuel trim on the right bank and max positve on the left bank. first swapped o2 sensors to check for a bias and no change. performed a fuel injector drop test it is ok. pressure is also at 35 pounds running. smoke test... |
March 01, 2011 | |
| 1999 Dodge Intrepid 3.2L Poor Idle Quality, MIL Lamp on VIN: 2B3HD56J3X P0172: Fuel System Rich (Bank 1). ... that sets code p0172 right bank rich all the time.also misfire on cylnder #1. Compression , fuel pressure, injector balance,spark ,valve timing (t belt)all check out.computer shows its trying to lean out rt bank and i think that is what is making cylinder ... |
March 02, 2011 | |
| 2004 Ford E-350 Super Duty 5.4L MIL Lamp on VIN: 1FDWE35L64 P0172: Bank 1 To rich. Ok this vehicle is maxing out the negative fuel trim on the right bank and max positve on the left bank. first swapped o2 sensors to check for a bias and no change. performed a fuel injector drop test it is ok. pressure is also at 35 pounds running. smoke test... |
March 03, 2011 | |
| 2008 Chevrolet Impala LT 3.5L MIL Lamp on VIN: 2G1WT55K68 P0172: Bank 1 System too rich. We have checked the O2 sensor, isolated the purge valve, and checked fuel pressure and come up with no reason for bank 1 to be running so rich (LTFT -21). Bank 2 pid is not available on our scan tool. Not really sure what will be our next step to figure this o... |
March 12, 2011 | |
| 2000 Volkswagen Golf GL 2.0L MIL Lamp on VIN: 3VWSA21C8Y P0172: fuel system rich bank 1. ... power.I replaced the MAF sensor 2 weeks ago for p0172 code.Under WOT load pid read 80%. After replacing MAF WOT load pid improved to 93% at WOT. Fuel trims are near zero at any throttle but steady -2% at idle.Freeze frame shows LTFT -2% at 73 degrees celci... |
March 16, 2011 |
