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No I dont have my stock tune and i dont have a copy of my current tune i am going to try to get one though

So flash it so its back to stock? I really have no idea here sorry totally new to this.

I have a 2000 pontiac grand prix 3800 turbo with the 4t65ehd trans and was tuned at a local shop but they said there was an issue with my tc and tcc going into lockup on and off automatically like it...