dlazrael

Help me diagnose... 2008 GT, Whipple 2.3L SC, FRPP 62mm TB, stock headers, MAC prochamber, Pypes Violators. All wires were recently redone to be soldered instead of spliced w/ butt connectors.

Car does this idle seek despite a new TB, cleaned MAF, Cleaned TB, new gasket, (appears) to be sealed (no obvious air leaks),

The rev to 4k then watch it hang, then drop and then idle hunt again. I've got another vid I can post if ppl need to show how high it rev's to with the clutch depressed coming to a stop in 2nd gear.

Is this tune related?

IDK how to embed videos so these are links to shared dropbox:
https://www.dropbox.com/s/1gzav0uhve...30513.mp4?dl=0
https://www.dropbox.com/s/kq5yw4fobw...31011.mp4?dl=0

Nuke

Either tune related or maybe a vacuum leak or intake in-leakage, IMO.

dlazrael

so many things to look at... *sigh*

dlazrael

Could a bad PCV valve be causing some of this problem? I notice alot of blow-by oil in the intake side of the supercharger inlet, as well as on the back of the TB... I also noticed (I can't get the pic on here) that the 19/32" PCV hose I used from advance auto seems to have collapsed at some point and appears permenantly pinched.... I wonder if THIS is causing the problem

Simon1

If it was running good prior to the work you did before, I would trace the entire repair and look for something that is screwed up.

I just took my throttle body and air intake off the other day and cleaned it. I had a hanging idle afterwards. I went back and rechecked all of the connections I had messed with and saw where the tubing on the intake had slipped down off the main plastic air intake. It was either letting unmetered air in, or metered air out. Problem solved.

This has happened to me several times. You put the fittings on correctly, or mostly correctly and while you tighten them up, or the other ones, they shift a little bit. In our haste to be done with the repair and drive the car. We fail to double check our own work. Best of luck.