Audi O2 Sensor Wiring. I am trying to match the wiring from a Bosch 4 wire rear O2 sensor to the wiring harnessdongle on a 2001 Audi A4 Avant Station Wagon 18 L. Audi A3 and A4 B7 Replacing Oxygen Sensor How to Replace Oxygen Sensor Make your Audi run like new again by replacing a problematic O2 sensor.
I am trying to match the wiring from a Bosch 4 wire rear O2 sensor to the wiring harnessdongle on a 2001 Audi A4 Avant Station Wagon 18 L. A wiring diagram is a streamlined standard pictorial depiction of an electrical circuit. Take your crows foot and extension again and break the sensor loose.
The sensor can have 2 3 or 4 wires some can have 5 or 6- these are rare and you have to know which one is the signal wire.
24 T10c - 10-Pin Connector violet connector station A-pillar left 32 - Ground connection behind instrument panel left 43 - Ground connection lower right A-pillar 44 - Ground connection lower left A-pillar 81 - Ground connection -1- in instrument panel wiring harness 135 - Ground connection -2- in instrument panel wiring. Oxygen O2 Sensor. The vehicle had repeatedly returned with a code of P0031O2 sensor B1S1 low current flow heater circuit failure open circuit. T read more.