wild5boy Posted April 5, 2014 Posted April 5, 2014 i have a problem with the lambda sensor on my wrx. i have replaced the sensor but still have a heater circuit fault p0031 has anyone else had this issue?
Gambit Posted April 5, 2014 Posted April 5, 2014 Not sure if the other sensors can bring that error code on I will have a look later. but some more info here if it helps in the mean time. http://www.subaru-car.ru/imp4/imp04_sec2_11-2.pdf
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