Help...

[Polecat]

Ok, put on the AEM Brtue force CAI on my Yukon, checked and double checked everything....the truck only idles about 300rpm and wants to die at stoplights...no check engine light, etc...what could be the problem?

 

[boostaholic]

Did you make sure the maf sensor is connected properly? I put nitrous on my buddys stealth and it ran like crap and wouldn't rev, cel was on and we couldn't figure it out until I noticed the plus wasn't in all the way.

 

[Polecat]

yep, pulled the whole system apart, have reset the computer like 6 times, everything jives...just idles improperly.
Will put stock back on tonight, if it runs correctly, stock it is.

 

[boostaholic]

WTF? Something ain't right. Did you try starting it with the filter removed?

 

[Polecat]

yep, did it with the filter removed as well...

 

[boostaholic]

Hmm you might have bumped a vacuum line loose, or the rough idle is common when the intake gaskets go out on these trucks. Seems funny it would pop up now of all times but stranger things have happened to me.

 

[Polecat]

yea, will put stock back on, if it clears up, then I will know, me and another engine builder buddy here looked at it for 45 minutes, couldn't find anything wrong...???
will advise tomorrow