Well crap. Seems to run worse with the mopar cts installed. However, with a potentiometer wired in acting as a manual cts it runs just fine. Maybe I'm not getting a good connection to the cts?

After 10 min idle today or would not idle from 130f to 200f.... let off the gas and die die die as soon as rpms dropped below 900.

 

Maybe you should inspect the wiring for the ects and make sure it isn't corroded and causing weird readings. I think I'd do that before throwing a computer at it.

 

Might try cleaning the throttle body as well.