P0171 Diagnostic Trouble Code Discussion for August 2018
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2006 Ford F-150 XLT 4.2L MIL Lamp fuel trims VIN: 1FTRF12206 P0171: bank 1 sensor 1 lean. P0171 was intermittent at first, now trips as pending anytime after code cleared/kam cleared. Easily repeatable when engine HOT and is restarted. Also P2195 sometimes triggers (pending) too. When graphing bank 1 stft it will slowly climb to 53%, the... |
August 01, 2018 | |
| 2006 Ford F-150 XLT 4.2L MIL Lamp fuel trims VIN: 1FTRF12206 P0171: bank 1 sensor 1 lean. ... trips as pending anytime after code cleared/kam cleared. Easily repeatable when engine HOT and is restarted. Also P2195 sometimes triggers (pending) too. When graphing bank 1 stft it will slowly climb to 53%, then slowly tick down to -14% and t... |
August 08, 2018 | |
| 2003 Jaguar XKR 4.2L MIL Lamp on VIN: SAJDA42B03 P0171: Lean. Restricted performance message. Car has hissing noise below throttle body and location cannot be found. |
August 10, 2018 |
