P0171 Diagnostic Trouble Code Discussion for February 2022
Fuel System Lean (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 P0171
| Help Request | Posted | |
| 2006 Toyota Sienna LE 3.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5TDZA23C36 P0171: Fuel System Too Lean (Bank 1). Hi all and thank you for taking the time to help me with my problem child. I have a Sienna with the 3.3 engine that has been giving me a headache for over a year now. Misfire cylinder #6. Sometimes the engine runs like a top, sometimes the CEL comes on wit... |
February 09, 2022 | |
| 2006 Subaru Outback 2.5i 2.5L MIL Lamp on VIN: 4S4BP61C76 P0171: Fuel System Too Lean (Bank 1). Looking for some input on this lean code have replaced the air fuel ratio sensor and maf sensor. Smoke tested intake and verified no other vacuum leaks like booster. Fuel pressure good around 55psi. Timing has been verified the belt was recently replaced. ... |
February 15, 2022 | |
| 2006 Subaru Outback 2.5i 2.5L MIL Lamp on VIN: 4S4BP61C76 P0171: Fuel System Too Lean (Bank 1). Looking for some input on this lean code have replaced the air fuel ratio sensor and maf sensor. Smoke tested intake and verified no other vacuum leaks like booster. Fuel pressure good around 55psi. Timing has been verified the belt was recently replaced. ... |
February 17, 2022 |
