I installed a skunk2 manifold a while back on my gsr motor. Ever since my idle has sucked ***. I've adjusted the air fuel mixture screw thing but it's not really helping.

All I want is a consistant 750-800 rpm at idle.

I've heard that you disconnect the ecu/battery then unplug the IACV and all should be golden.
I did that and nothing...

So...there has to be something that I'm not doing. Any clue?

tia

 

does the idle jump up and down or is it just really low? If its jumping up and down you have a vacum leak...check all the lines to make sure everything is tight.

 

The RPMs pretty much stay at like 1100...sometimes they'll jump between 1000-1500, but that's not that often..

 

that sounds like it could be a vacuum leak. what ecu are you using? Have you set the idle with a digital tac?

 

a repogrammed P28...it's starting to surge again..so, I'm thinking it could be a vaccum leak..

 

I would say.. check TPS.. or the throttle cable..