VP stalling when shifting from park...

[jonnydico]

My VP seems to be stalling when I shift from park to drive. More often when engine is warm or car has been sitting for a while after driving. Any ideas. I have cleaned the trottle body, new plugs and leads, new coils, new DFI, new crank angle sensor. Transmission shifts smooth. Any ideas? Also there is a light knock heard only in the cabin and not from the engine bay, could this be related? thanks in advance for you time

[crawjp]

I have the EXACT same problem, I have made the same repairs u have, no luck, I have heard that it may be IAC related, but I have no Idea how to find that or how to fix it. Do u know anything about this?

[vr1uz-fe]

the knock is the balence shaft bearings

[wortus]

the IAC valve is on the throttle body, take it out and with it connected turn the ignition on and you should see it move up and down a few times this usually means it is OK. If you cleaned the throttle body and drowned the IAC in throttle body cleaner I was told this can damage them.