P0135 Diagnostic Trouble Code Discussion for July 2016
Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Performance
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| Help Request | Posted | |
| 2003 Audi A4 3.0L Poor Idle Quality, Surge, Stall VIN: WAUZZZ8E43 P0135: O2 bank 1 sensor 1 heater circuit malf. Engine would rev up to 2,500rpm, after approx. 2 mins would cut out, after restart would run erratic again until it warms up, excessive smoke during erratic idle due to over fueling. 6 codes in memory(see below), checked wiring diagram and found all codes re... |
July 07, 2016 |
