There is a site that is dedicated to the DIY engine mechanic. (DIY Engine Diagnostic Tool) This site has everything that you need to diagnose the engine in your car, OBD I to OBD II, from ABS to Timing/Spark and the tools you will need to diagnose your engine, we have scanners, manuals and diagnostic hand tools. This is a link that is dedicated to finding the tools that you need to diagnose the problems you might be experiencing with your engine. Thanks for looking and have a great day!