Well, about a month ago I pulled the UIM and cleaned the UIM, optimized the MAF, TB and cleaned the IAC. I did NOT replace the UIM gasket, TB gasket and EGR gasket. Everything mated well. I had the same TH problem and I chased it all around the engine bay.
Then for some reason, I unplugged and reset the computer over night, vs unplugging it for 10 minutes. Magically it worked fine and I did not question it. Then, yesterday after I detailed the engine bay the car started acting up again, and it has been doing it since.
As for the TH fix, I tried the 2 sizes recommended for the SVT intake. Is there some kind of load sensor that is out of wack???
