P0139 Diagnostic Trouble Code Discussion for February 2011
Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response
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| Help Request | Posted | |
| 2004 Audi A4 1.8L Hesitation, MIL Lamp on VIN: WAUJC68EX2 P0139: o2 sensor slow response b1 s1. Car running poorly check engine light on. Found 5 DTC"s Tested o2 sensor/ A/F sensor heater working and sensor working. Cooling fan stays on all the time. Found Identifix bulletins leading to Leak detection pump(LDP). LDP is not receiving power tested fuel... |
February 04, 2011 |
