5k RPM idle. HELP

[purplerocket69]

Just ported slightly my throttle body. Cleaned it out free of gunk and good stuff. Everything is connected and set right but when i start my car it goes to 4k rpm, slowly rises and levels at 5k. I have probably 40% of my gasket left since the other part of it cracked and isn't on there. Before I buy a new gasket, could this be the problem? the gasket I feel like is the problem here. I already reset the ECU, nothing. Please let me know on what it could be but right now im putting my money on the gasket.

 

[GSLENK]

did you port anywhere near the butterfly? if not, then it is likely the gasket. However, when I swapped TB elbows, and used the old gasket (torn etc...) it idled horrrible, jumped to 3k, then back to 500 (or stalled) and up to 3k and repeated.

 

[bullettdsm]

It is the gasket.

MB

 

[bryanwheat]

I agree that the gasket is causing it. However i wouldn't put it past someone that reused half a gasket to port around the butterfly bore area.

 

[purplerocket69]

Sweet, thanks for the quick responses, much appreciated. AAP ordered me a gasket to pick up tomorrow morning. I'll get it on there and keep you guys posted. Once again, thanks for the input.

 

[bullettdsm]

However i wouldn't put it past someone that reused half a gasket to port around the butterfly bore area.

Touche'.

Let's see what happens when he fixes what we know is wrong first.......

MB

 

[purplerocket69]

Gasket it is. Thanks again guys.

 

[bullettdsm]

Excellent. Glad to hear it.

MB