I have a '95 ODBI PCM I'm putting with my LT4 motor going in my truck. On my '95 TA, there a button labelled "Transmission Perform" on the console which makes the auto tranny shift harder and at different shift points.
Looking at the PCM tables, there are separate tables called "perform" and "Normal" for all of the 4L60E transmission tables.

I'm wanting to rig up a button in my truck that I can hit and use these "perform" tables in the PCM, but can't find which pinout on the ECM to wire it to??
From what I understand, the switch is not a on/off switch, but only gets positive current or ground, not sure which, for just the moment the button is pushed.

Anyone have any info on how to do this?
Thanks

 

here is a url that should help you ...
i'm planning to do this to my z28 also ...
i have a friend with a 95 ta with the perform switch , it works !!!

http://members.***.net/chipsbyal/page/trans/

 

Thx Patriot, thats exactly what I was looking for!!
Yes is does work, there's one in my '95 TA and it firms it up real well, and I see the tables it would use in the PCM file, so you can even make it firmer or lighter if you wish when the buttom is depressed. It resets back to "normal" mode when either the button is pushed again of the engine is cut off and restarted.