Can!t roll no mo, help?

[Anthony l]

I just got this project an I have added a cold air intake,ceramic headers,an a all aluminum radiator is all. I have drivin it for a couple of weeks, now all of a sudden when it revs up too 3500rpm it dies as if it has a rev limiter on it . It has been scanned an it does not close loop at any rpm, an said something bout injector. I have taken all of them out inspected an seam to be fine. No vacuum leaks to be seen. Did a compression test an 75 to 80 psi on one cylinder makes me think of changing the heads to something better for more hp,if possible any suggestions I currently have the ls 18a1?

 

[natron84]

Check your ignition cap & rotor. Could be your rotor is just in desperate need of being replaced ($5 at autozone).

 

[hgocasca]

75-80psi???? Something is seriously wrong.

 

[mirrorimg]

There is something really wrong if you got that PSI on a cylinder. It may be a snapped valve thats bouncing around in your combustion chamber. Did you do a dry and wet compression test, to see if the #'s changed?

 

[guiltyxxspark]

I'm surprised your car starts at all.

 

[BrokenTalon27]

There is something really wrong if you got that PSI on a cylinder. It may be a snapped valve thats bouncing around in your combustion chamber. Did you do a dry and wet compression test, to see if the #'s changed?

75-80psi???? Something is seriously wrong.

I'm surprised your car starts at all.

I'm with you guys on this one. Something is very wrong with that motor.