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P0031 Fault Code on 2002 Subaru Impreza WRX - Heater Control Circuit Low

We recently replaced the front O2 sensor on our 2002 Subaru Impreza WRX with a new OEM part from Subaru, but the P0031 diagnostic code (Bank 1 Sensor 1 Heater Control Circuit Lo...

02 impreza wrx | P0031
2006-08-03
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