Anonymous

I had my car tuned with LS1 edit. (02 Z28 4L60E)
The car was running fine, then I bought a looser converter. After the install everything was fine but the shift points 1-2 & 2-3 were set too high for the new converter, so I went in to drop the shift points. Right after that, the car would pull out in second gear or wouldn't move at all. I would give the car a lot of gas and it would barely move? The tranny was all messed up.

Upon scanning the car with a TEC II it said two solenoids were trying to activate at the same time. It ends up the transmission file got corrupt?

So, I had to re-flash the computer to stock. Then I had to have the car re-tuned, so this time I went with HP Tuners and started from scratch. I ran the car at the track again, it ran fine but the 2-3 shift point was just a bit too high still. So I went in with HP tuners again to drop the shift point a hair. Well, I went to move/race the car and I am having the same exact problem again, but now the car won't even go in reverse?

What could be the problem? Some people I have asked think maybe the PCM is bad?
But then, why would it work after a fresh retune and only fail after I try to make a change with the shift points? I know this sounds quick and simple but this has set me back months and a bunch of money is on the table.

What do you think? Any help would be appreciated. Thanks

Anonymous

Nobody else has had this problem or knows anybody that had this problem?