94 cobra major problems

[demon40]

I have a 94 cobra with the norman bolt-ons, heads,cam,intake,throttle body,pullies, JMS SCT chip,etc. It is also turbo charged. Just put the chip in to day and every thing seemed to be great. When i took it down the road it ran good but would only build 5psi before it started to stutter. And thenall of a sudden at cruising speed the check engine light came on, and wouldnt hardly start off from a dead stop. After it sat for about 30 min it started up and ran fine for a little bit and then started doing the same. Im totaly lost for what it could be. If anyone has any idea please help.


Thanks Brandon

 

[MattZ281LE]

Pull the chip. My guess is that the tune is off once it warms up and comes up to temp. Was it a mail order chip? Could be pulling timing fuel etc. You should do a dyno tune. IMHO thats the only way to get a good tune. Any tuner that uses SCT should be able to reburn your chip.

 

[demon40]

thanks for the help

Thank you for taking the time to respond. Come to find out the plug wires that i put on the car only two months ago were shot. They are getting so hot that the insulation is cracking and falling off. And the bad part is that i even have dei boot protecters on them and their still getting too hot. So now i have a new problem to solve.

 

[BlackVert]

i had a very similar problem when i had equal length headers. do you have EL headers too?

 

[Pokageek]

Pull the chip. My guess is that the tune is off once it warms up and comes up to temp. Was it a mail order chip? Could be pulling timing fuel etc. You should do a dyno tune. IMHO thats the only way to get a good tune. Any tuner that uses SCT should be able to reburn your chip.

That's a pretty good guess man. Ahh yes, turbo and heat. I had one of them and I had insulation all over to protect.

 

[MattZ281LE]

HAHA usually look back to the last thing you changed.......if everything is working good to that point...thats normally the cause.