P0171 Diagnostic Trouble Code Discussion for November 2020
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2012 Infiniti QX56 5.6L MIL Lamp on VIN: JN8AZ2NF5C Code p0171. Replace driver side air fuel ratio sensor.test drive vehicle, code p0174 occur . Replace passenger side air fuel ratio sensor. Test drive vehicle and code p0171 occur again. Both old a/f ratio sensor was black. Long term fuel trim stuck at 41 p... |
November 02, 2020 | |
| 2004 Ford F-150 FX4 5.4L Stall, Misfire, MIL Lamp on VIN: 1FTPW14524 P0171: Lean bank 1. This one is running the LTFT up to 30 on one bank and 18 on the other. It definitely needs an injector as it is at 4 ohms, however, there must be something else wrong. The fuel pump driver module was only getting 6 volts so I thought that would resolve it ... |
November 03, 2020 | |
| 2012 Infiniti QX56 5.6L MIL Lamp on VIN: JN8AZ2NF5C Code p0171. Replace driver side air fuel ratio sensor.test drive vehicle, code p0174 occur . Replace passenger side air fuel ratio sensor. Test drive vehicle and code p0171 occur again. Both old a/f ratio sensor was black. Long term fuel trim stuck at 41 p... |
November 03, 2020 | |
| 2013 Ford Edge SEL 3.5L MIL Lamp on VIN: 2FMDK4JC3D P0171: System Lean Bank 1. Hello Folks, Well I have another nightmare here and I hope you can help. This car, I swear is possessed, I have never seen anything like this one. Car came in with a simple SES light on and very intermittantly the engine will misfire between 1500 and 20... |
November 20, 2020 | |
| 2013 Ford Edge SEL 3.5L MIL Lamp on VIN: 2FMDK4JC3D P0171: System Lean Bank 1. Hello Folks, Well I have another nightmare here and I hope you can help. This car, I swear is possessed, I have never seen anything like this one. Car came in with a simple SES light on and very intermittantly the engine will misfire between 1500 and 20... |
November 24, 2020 |
