A6/ ALT engine lambda quesion
3 Faults Found:
16524 - Oxygen (Lambda) Sensor B1 S2: No Activity
P0140 - 004 - No Signal/Communication - Intermittent
16523 - Oxygen (Lambda) Sensor B1 S2: Response too Slow
P0139 - 004 - No Signal/Communication - Intermittent
17522 - Oxygen (Lambda) Sensor: B1 S2: Internal Resistance too High
P1114 - 008 - Implausible Signal - Intermittent
It means that lambda burn-out (Internal Resistance too High), BUT check-engine lamp doesent't lights (at start it lights normally).
How to check is it labda or ECU/wires fault ?







