Wot the car will start to break up and I hope it is not the opti. So I wanted to find out what should do first. Should I change the plugs or wires or will these cause this. And if so what kind to use thanks

 

ok i have read and fond more on the subject and i am just going to change the plugs and wires. i went to auto zone and bought both but how hard is it and can someone helpwith a lil how to on this.from what i can see the driver side might not be that bad but i think the passenger side will be. how have you all done it. thankd for your help.

 

They are no fun to change the plugs and wires in and i have not found a way to do it any easier than just a socket and a wrench. i had a similar problem a few months back and went through about a month and a half of pulling things apart i put a new opti cap and rotor on changed plugs and wires a new coil and a ICM, and the problem ended up being O2 sensors and all that was wrong was when the car hit about 4-5 thousand RPMs it would dog down horribly... just a thought to look into

 

Likely a coil wire. If it is a single wire then it would likely be more consistant at all RPMs than just at WOT High RPMs. But, it wouldn't hurt to change them out.

I've got headers on my car that are a major pain. You can purchase a spark plug socket which has been bored for the LT1 which makes the job... sigh... somewhat easier. I went one step further and got those ratcheting box-end type wrenches that fit on the spark plug socket... helps a bit more.

It may take a few hours. Depends if you have headers and what type of headers.

 

coil wire as in the short wire that comes from the opti to the coil.

 

ok i just took th car out and when i hit the gas it will go then break up and go again i changed the coil wire, so thats not it. i looked at the plug wires the look kinda new the plugs look black but can the plugs cause this. i dont want to have to replace the opti but what price range am i looking at to do it. i have never done it myself should i try and if so can someone help with a lil how to on this. will i need any speacial tools or not, and what gaskets i will need thanks in advance.

 

I would say its opti.. It was no fun doing it, and I hope you have a second car to drive cause if was you I would like to take my time. Optis range from $200 - $500. But I would recomend with GM Performance that is about $300
Here is a link to do it your self info... Good luck
http://shbox.com/page/index.html

 

I am watching this thread hoping to find my high rpm miss solution. However besides the opti everything is looking nada.

 

well i just went and got new plugs will put them in and letyou know if that helps. i got new wires to but they were $55 so i will do the plugs first.

 

well it looks like i can return th plugs and wires, the wire from th opti to the coil was loose so i pushed it hard and now car runs good....... thanks to all for your help this site kicks ***

 

Cheap fix.

 

well i was wrong now the car misses in 1st 2nd and so on. i guess i will have to change all the wires and plugs.