I know everyone thinks the other programmers are better and they are probably right. But I wanted to see if anyone was having the same problems I am. Hypertech updated my programmer for my 2003 Avalanche to the 2003 H2 for free. Thats why I tried it. I cant seem to adjust much with the programmer. I cant adjust the RPM's, and 1-2 shift point without the truck hitting the rev limiter. I can adjust 2-3, 3-4 shift points by 2mph and the shift firmness and still be ok, but Im glad I didnt spend much on the Hypertech. If anyone has any advise I would love to hear it. One thing I like on the new Hypertech is the ability to read the diagnostic codes on the truck.
Thanks
John