Car stutters at low RPM when hot

[Geoff87]

I have been chasing this one for a while now..... I'm starting to drive the GN on a daily basis again, so any help will be appreciated.

This happens ONLY after sitting in heavy traffic for a while, when the car gets hot. The A/C also has to be on, in order for the car to run hot. Otherwise, the car runs cool, and does not stutter/runs fine.

-Outside temps in the upper 80's & humid
-Engine temps around 178
-IAT (MAT) around 110- "hot" on Scanmaster
-Stuttering usualy occurs between 1200-2000 RPM
-Stutters in ANY gear. I can put the car in "Park", and the stutter will still be there somewhere between 1200-2000 RPM

-Current odometer reading 79K miles.

I have replaced:

Coil, Ignition Module, Wires, Plugs, MAF, and chip.

Trans & TCC solenoid were also changed due to tranny problems.

Any suggestions? Bad cam sensor? Crank Sensor? TPS?

Thanks in advance!

 

[Geoff87]

BTW, I also swapped ECMs with no luck....