Newbie with lt1 swap need help please

[Lyndon]

Yes when I got a performance transmission built for this project, I had them build me a 1994 tranny. I was aware of the pwm tcc and also 3-2 solenoid issues when mixing years. Also, yes the eeb version idea that you mentioned is what I had read about on this forum, but me being so new to this, I misunderstood what it meant. I really appreciate your help Steveo, I know how frustrating this must be to walk someone through this. I promise I am only have as stupid as I appear. Also I believe I have attached the bin to this reply but I don't know if I did it right. Let me know please.

[newellshk]

I have seen bins from aftermarket "chips" that change the checksum routine or write the checksum to a different address. So it is possible that a bin can't be modified by tunerpro and written back with the normal checksum setup unless you were to identify the checksum routine modifications and change them back using a binary editor or some other method.

Do the later operating systems not support non-pwm 4l60e transmissions? I would think it would just be some calibration changes but maybe not.