P2272 Diagnostic Trouble Code Discussion for April 2018
Heated Oxygen Sensor (Bank 2 Sensor 2) Stuck Lean
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| Help Request | Posted | |
| 2014 Audi S7 4.0L MIL Lamp on VIN: WAUW2AFC9E P2272: Oxygen sensor B2S2 too lean. Audi Tech, please help. Car original came in with a whistling noise. Found excessive vacuum in crankcase. Replace oil seperator, noise problem has been resolve, but check engine light back on with 4dtcs. Replace boost sensor 2 & still back with same fa... |
April 19, 2018 |
