Wednesday, February 25th, 2009 AT 4:46 PM
Hi guys my 2000 grandprix seems to be missing at around 2000 rpm. It seems like a spark problem.I have changed the plugs and wires and 1 coil. But the problem still there. The engine light don't come on. Could it be the egr valve. But I would think the engine light would come on if it were acting up. Or do you think it's the ignition module acting up. Do you have any suggestions. Thanks in advanced john