Subaru WRX Forum banner
p0031
1-1 of 1 Results
  1. General Maintenance, Troubleshooting & Accidents.
    Hello, My car has been popping a P0031 (Heater Circuit Low) and with a bit over 130000 miles I recognize that the front O2 sensor needs to be replaced. No problem. Of course everytime something dies on my car, I try to upgrade it. So I would like to do a wideband sensor with a gauge, and it...
1-1 of 1 Results
Top