specluvr wrote:

ok so for a couple months now when ever i try to accelerate my car will rev and accelerate completly normal until aobut 3000rpms then will basically lose power and accelerate very slowly. im pretty sure that this is an ECU problem bc if I shut my car off while driving, then start it and floor it will take off normal and then after i stop accelerating it goes back to the same problem. drives just fine minus the fact that when i try to use cruise control it will it will turn on but when i press set, the set light starts flashing repeatedly until i turn off. the car is an 03 spec with 91000 miles.

My questions is if you ECU tuning gurus can help me with this problem or how to solve it, and if i do need an ECU the best place to get one and if so what spec v years will work.

thanks in advance
-Jon

I personally have had to replace my 2002 non-NATS ecu, which is referred to as a 5L.