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Idle issue on startup the good after 20 to 30 seconds ??

Uno99

Uno99

Donating Users
My 2002 GTP has been acting squirrely lately.

The car starts then as soon as you hear the loud sucking from the CAI it starts to stumble. I can keep it running if I work the throttle a bit then after 20 to 30 seconds when the loud sucking from the CAI stops it will idle and run just fine.

I replaced the IAC valve, fuel pump, fuel filter, plugs, wires, added a caspers hotwire kit.

No Codes
Ive tried unplugging the maf but it will not stay running.

Thoughts? Ideas? Thanks guys
 


Mine did that when I first put mine on, it was from the maf. I tried unplugging it to see if it would run that way and it didn't make a difference but I ran out of things to try and just replaced it, after that it ran fine.
 
I just changed the IAC this evening ugh. It weird that th issue is intermittent and only last 20-30 seconds after startup and happens less when the engine is warm.
 
Still the same after cleanin Maf and TB my wideband goes way lean 17:1 then 18:1 the off the gauge after that.
 


Just wanted to post my solution. There was a gap between battery and terminal. Even tho i had the battery bolt as snug as possible the play between was causing intermittent issues. I simply placed a steel washer inbetween and tightened it up no isssues since
 
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