Does the engine have 300000 miles on it? If so, check the spark plugs, ignition wires, distributer cap and rotor first. Check for vaccume leaks and a sticking PCV valve. If they are ok, it sounds like the throttle position sensor (TPS) and/or the ignition module is going bad. Considering the mileage I would just change the TPS -- as for the ignition module -- have that tested. Autozone or a place like that will test it for free. They may even test the TPS too. If you want to test the TPS sensor yourself let me know.
Tuesday, May 20th, 2008 AT 5:20 AM