Just to add to this one dont waste your money on that plastic box with the lights and switches on it that hooks up to your obd1 connector.I posted how you can flash out your codes without buying the little box. They also sell a GM little key that plugs into the connector to flash out the codes that is really cheap. If you had a scanner you could read codes and some live data if your still intrested in getting a scanner one that reads obd1 and obd2 let me know I can tell which one to get. You could probably get one for around 200 or less.
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Wednesday, September 28th, 2011 AT 3:02 AM