I have had the trans. performance mode programmed into my pcm. The only problem is it is not an f-body so I need to go right to the computer. Anybody know the pin number on the pcm I need to tap into? So then all I have to do is hook up a momentary switch to ground from the pcm correct?

P.S. this is my first post here so sorry if I did something wrong

 

Well you should specify the year, make and model of your car to start with. Is it a GN?

 

96 imp with a 95 computer

 

Did I post this in the wrong area?

 

I think you posted in the right area. Sometimes it just takes awhile to get a response here.
http://home.tampabay.rr.com/jayz28/tranperformance.htm
and
http://members.***.net/chipsbyal/page/trans/page3.html
is the info I used to do the switch on my 95Z but I have no idea if this info would help you with your Impala. Anyone here with an Impala ever tried this?

 

I got it from another f body forum pin 13 on the grey connector. I don't have the wiring there like you guys so I had to go straight to the computer
None of my b body guys knew WTF I was talking about they thought I was full of it. Thanks for the link I'm sure it will come in handy since a few of my buds have 4th gens.