P0171 Diagnostic Trouble Code Discussion for March 2021
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2009 Hyundai Santa Fe GLS 2.7L MIL Lamp on VIN: 5NMSG13D99 P0171: Fuel system too lean bank 1. The car came in as a extended crank cold and check engine light on. Scanned the ECM and the four codes where stored. Cleared the codes, smoke tested intake and EVAP no leaks. Scanned the fuel trim data to find a +-2% on both the long term and short term bu... |
March 01, 2021 | |
| 1999 Honda Civic EX 1.6L MIL Lamp on P0171: Fuel System Too Lean. ... Civic EX with 212,000 miles on it. It has a p0171 code. It has both STFT and LTFT maxed out. STFT only improves under load, and even then only gets to about 20. STFT does not move with no load throughout RPM range. Manifold vacuum reading at idle was -... |
March 07, 2021 | |
| 1999 Honda Civic EX 1.6L MIL Lamp on P0171: Fuel System Too Lean. ... Civic EX with 212,000 miles on it. It has a p0171 code. It has both STFT and LTFT maxed out. STFT only improves under load, and even then only gets to about 20. STFT does not move with no load throughout RPM range. Manifold vacuum reading at idle was -... |
March 08, 2021 | |
| 2008 Subaru Impreza 2.5i 2.5L Hesitation VIN: JF1GE616X8 P0171: System Too Lean Bank 1. ... issues that have proven very difficult to troubleshoot and has gotten progressively worse and worse as far as driving ability. Recently the vehicle performed very poorly over a long road trip, with complaints of surging, lack of power and ability to... |
March 16, 2021 | |
| 2008 Subaru Impreza 2.5i 2.5L Hesitation VIN: JF1GE616X8 P0171: System Too Lean Bank 1. ... issues that have proven very difficult to troubleshoot and has gotten progressively worse and worse as far as driving ability. Recently the vehicle performed very poorly over a long road trip, with complaints of surging, lack of power and ability to... |
March 18, 2021 |
