Hello, im new here.
So my new to me Australian 1997 WRX, EJ20G has a check engine light for the Idle control valve or circuit. I only found out now after buying it becasue someone removed the CEL bulb from the cluster.
I took the valve off and cleaned it but nothing changed.
I had it idling...
O2 Sensor Heater Control Circuit → Low (B1S2)
WHEREEEEEE is this sensor even located?? I can't find any plugs coming from the STOCK exhaust besides one and that's the front upstream sensor... the exhaust doesn't even have a plug spot for another sensor anywhere!!??
ej251, the car was...