It started out last Oct. that my car just all of a sudden one day decided not to shift. I had the programming from PCM4Less in the car since June with no problems. Just cruising it would take to about 4.5k to shift from any gear. Totally sloppy. So I just put it away for the winter and said I'll deal with it in the spring.

Well, spring is here. I take the car out. Battery was completely disconnected all winter. Car shifts fine cruising around. So I think it is fixed. Take it to the track. Still shifting fine cruising. Then at WOT nothing. The 1-2 shift is ok sometimes but the 3-4 shift just isnt working. I even had the car reprogrammed to lower the shift points to 6k just so I dont have to rev to the moon to find out if it is shifting or not.

Does this sound like a tranny problem or a problem with my computer?

Oh ya, I jsut changed the tranny fluid and didnt find any trace that the tranny was busted. No shavings or burnt fluid, just the normal wear.