Then what is this $80 part that come up when i search for a 1990 Subaru Loyale Knock Sensor? part #KS89
My CEL comes and off at what seems to be random times, my mechanice said it maybe my knock sensor.. I need to get my washington state emissions test,however, from what i understand it will be an automatic fail if the CEL is on.. (this is my first test in the state of Washington, NY does a safety check)