P0171 Diagnostic Trouble Code Discussion for September 2021
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2008 Toyota 4Runner Limited 4.7L MIL Lamp on VIN: JTEBT17R98 P0171: Oxygen Sensor Circuit Malfunction Bank 1 Sensor 2. This vehicle is from a used car dealer bought at auction. The car lot replaced MAF sensor, plugs and both upstream air/fuel ration sensors (denso). While at idle in closed loop and driving the stft will stay at *-8 for a 30 mile trio. When started the next... |
September 20, 2021 | |
| 2008 Toyota 4Runner Limited 4.7L MIL Lamp on VIN: JTEBT17R98 P0171: Oxygen Sensor Circuit Malfunction Bank 1 Sensor 2. This vehicle is from a used car dealer bought at auction. The car lot replaced MAF sensor, plugs and both upstream air/fuel ration sensors (denso). While at idle in closed loop and driving the stft will stay at *-8 for a 30 mile trio. When started the next... |
September 21, 2021 |
