Is it possible to have it tested when the check engine light isn't on? Blasted thing comes on about once a month and twice it went off on the way to my local mechanic and last night it came on again but the shop was closed up. All fine this A.M. and may stay that way for another month *ugh*.
Have to take the car back to the guy anyway as I was having trouble with the hood not latching completely (would partially open when you went over 65MPH) and he fixed it all right, now I can't get the hood open LOL.