Feb 232015

I need to know what the wire colors are and which ones are witch before the o2 sensor after the turbo so it would be the down stream o2? I got a Bosch o2 sensor the universal one and i cant seem to figure out the wiring please help

  One Response to “2002 subaru wrx 2.0 tubo”

  1. BLU/RED connects to the Ground Joint Connector
    YEL/RED conects to the Main Relay
    WHT connects to PIN#17 on the ECM – Engine Control Module
    RED/WHT connects to PIN#13 on the ECM

    2002 Subaru Impreza WRX o2 Sensor wiring diagram

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