2003 636 Idle Problem

[Twite]

Originally Posted by ToKwik

I've got a couple spare crank sensors if you need to snag one to test.

Couple other things I'd check since it sounds like you covered all the main things...
TPS adjustment and Reed valves. Wouldn't hurt to sync the TB's also.

I'd focus on the AIR side of the equation with the head. Have you done a leakdown test? Was the head decked after the intake work? You checked clearances, but what are the condition of the seats and the valves?

And Rowdy, your map was done for your motor and exhaust setup, not Twites. I wouldn't recommend wasting time trying it as a diagnostic tool.

Feel free to call if I can help at all. If you like we can throw it on the Dyno and see what the actual numbers come out to be rather than you throwing parts at it.

3 different sets of TB sensors. Different reed valves (cleaned them out for good measure).
Seats and valves were checked and in great condition.

Trying to get it on a dyno tomorrow or Friday to get some real numbers!