a little advice please.
So I was thinking, if i had an intake leak it would effect it at idle, not when im on the gas. So it cant be low vac can it? It's a midrange and starting to be more high end misfire. I have god fuel pressure, new o2 sensors, new plugs, new wires, no arching. It idles fine too. It only has a problem when im driving it. Im thinking its the opti, icm, or coil. Am i on the right track? What should i replace first? Is there a way to check the icm or coil?
So I was thinking, if i had an intake leak it would effect it at idle, not when im on the gas. So it cant be low vac can it? It's a midrange and starting to be more high end misfire. I have god fuel pressure, new o2 sensors, new plugs, new wires, no arching. It idles fine too. It only has a problem when im driving it. Im thinking its the opti, icm, or coil. Am i on the right track? What should i replace first? Is there a way to check the icm or coil?
Have you tested fuel pressure under load? You have to be able to read the gauge while driving at WOT all the way through the rpms to see if fuel pressure drops any.
You can test your coil:
http://shbox.com/1/coil_testing.jpg
Otherwise it could be your opti.
Yeah mine does sound a little low. I thought it was supposed to be 20 or so. But it idles fine. 
What would be the symptoms of a bad icm? Would the opti have an rpm range it gets worse at like mine?
What would be the symptoms of a bad icm? Would the opti have an rpm range it gets worse at like mine?
A bad opti can cause all kinds of symptoms; no starts, missing, hesitation, bogging, backfiring, etc.
