the check engine light came on last friday night in my wifes 2001 legacy. I picked up a knock sensor from autozone - they said it had code P0328.
I noticed my wife had the tank below E, so I filled it with 13.8 gallons US.
I will be installing the sensor on saturday and was wondering - does the check engine light reset itself and just store the codes or do I have to reset it myself? Autozone said chilton does not make a shop manual for 2001 yet.