there is no idel surge, when im at idel it acts like its going to cut out. like its not getting a spark. when i mean from idel to 3500, as in if i give it to much gas its just boggs down. and take it for ever to go any were. also no CEL.

ECU would be a good try, but i dont know alot of people around town with an LS ECU..

i have tryed the the valve under the Throttle body, and the IACV is fine..