Where in MD are ya? I'm sure if you check over in the Capital Area CEG section someone there could probably direct you to an AutoZone or Advance Auto near you. Why stealerships charge anything to check codes is beyond me as with a code reader it takes all of 30 seconds to do the job if that. But yeah I have to agree that $650 sounds awfully pricey for a basic tune-up, but then again I usually do most of my own work too so I don't know what a lot of places charge these days.
