P0172 Diagnostic Trouble Code Discussion for October 2013
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 | |
| 2000 Toyota 4Runner Limited 3.4L Misfire VIN: JT3HN87R3Y P0172: Fuel System Too Rich (Bank 1). Attention Toyota Techs, mystery needs solving. This 4Runner came in with the complaint of a very intermittent misfire condition. The engine would be idling and suddenly run rough, when the customer steps on the gas she claims to hear a popping noise coming fr... |
October 02, 2013 | |
| 2001 Lincoln LS 3.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LNHM87A01 P0172: System Rich bank 1. I'm getting a P0304, P0303, and P0300 stored in memory. The car runs rough at idle, Fuel Trims show bank 1 as -25% and bank 2 as +25%. I have replaced all spark plugs and #4 coil with no change. EGR Valve is functioning correctly with no leakage. No excessive ... |
October 08, 2013 | |
| 2005 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KD54Y65 P0172: Fuel Trim System Rich (Bank 1). ... intermittent harsh shifting. We have code P0172 which indicates throttle position sensor 1 circuit short/low. Testing verified that TPS is good but that we have no 5 volt reference coming out of computer pin#8 at connector 2 of pcm. This pin#8 only supplie... |
October 14, 2013 | |
| 2001 Ford Taurus SE 2-Valve 3.0L MIL Lamp on VIN: 1FAFP55U01 P0172: Rich bank 1. This is a returnless system i am trying to confirm where the fuel pressure is regulated dealer says part number [...] is the fuel pressure regulator but it looks more like a plastic rollover valve and a vapor valve that is inserted into the top of the tank wit... |
October 24, 2013 |
