Hi mj65, Welcome to 2carpros and TY for the donation
The following can contribute to your problem
Xx Catalytic converter xx do this 1st
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.
Note:If it doesn't apply disregard.
Thursday, May 27th, 2010 AT 7:55 PM