Well here it goes. Ive got an 87 GTA that is an auto 2 manual swap, Now i've got a Holley stealthram on the way but it seems ive got an 86 harness i think due to the fact that im running an in-coil cap with the stock connections. I dont wanna cut up the harness either cause i have a friend who wants to go TPI but doesnt have the $$ so i'll give him my 86 harness. I was wondering of the harness for an auto and manual car are different at the ECM connection or if its universal because i was going to buy a Painless harness for an '87 up TPI if its a straight foward swap.

 

dont waste your money on it. I used one on mine and it was a major pita to get it to work...none of your guages will and stuff like that. Id find a used harness on ebay or somewhere if i was you.