Well everything is good on the car except the smc. when i have the smc wired in the car runs horrible. i do have a GM 3bar map sensor form when Zdyne was in the car but when i change ECU's to a stock pr4, it threw no MAP code so i figured it was okay. i tried to change the voltage threshold and everything.

Q1: is it alrite to run stock ecu with GM 3 bar
Q2: will smc work with GM MAP and stock pr4?