Most local part stores such as AutoZone or O'Reilly Auto Parts will perform a diagnostic scan of the engine codes for free. However, I believe some of the part stores only have scanners made for vehicles that were released in 1996 or later.
If this is the case, you can purchase a diagnostic scanner for your vehicle which will be much cheaper than paying a repair shop everytime your engine code appears.
Here are some tips for scanning your check engine codes http://www.2carpros.com/dia/how_to_scan_trouble_codes.htm
Friday, January 9th, 2009 AT 11:38 PM