on a ten year old troope with a little over 64,000 miles, just noticed the check engine light on but then it turned off
the timing belt and tensioner (pusher) were replaced over a year ago
am I correct in assuming that at some point close to 65k miles, the light will turn on or is this perhaps some other unrelated situation (ie. oxygen sensor etc) ?
in case it matters, I've had to switch to premium unleaded several months ago to stop pinging