I've got brand new plug wires and plugs. i'm guessing either one of the coils have gone or are going bad...or possibly one of the fuel injectors has crapped out on me. the miss at idle it very noticeable, and up top it starts around 6300 and goes pretty much until 8000. anyone have this problem before? thanks!

Scott

 

Easy to test the coils with a spark tester.

Bad injector is more difficult to diagnose, but I would start by pulling the plugs and examining them. Wet with fuel would indicate a bad coil, completely dry would indicate an injector that's not firing.

I would assume you have eliminated common problems like vacuum leaks, and have adjusted the TPS?

 

alright thanks i will check out the injectors because my plugs are always dry...what is the max output (voltage)that the TPS should show. I will have to test that and see what happens thanks...