I'm going single and would like to exceed the 17psi limitation of the stock map sensor. I know I can order the GM 3 bar map sensor but I'm just curious on what else I need to do to integrate it with the Power FC. Do I just splice it into the stock wiring? It looks like the Power FC has a seperate plug on it that accepts the 3 Bar map sensor. If I plug it into there what adjustments do I have to do to the actual ecu? Any help would be greatly appreciated. I know a few of you have done this. If anybody has the manual for the Apexi boost kit I would appreciate it. I think that will help explain a lot of my questions.

 

I believe that 3 pin harness is for using your stock sensor as an atmospheric pressure sensor.

I remember hearing something about sensor options 2-4 being ones for GM 3 bar.

 

Splice it into the stock wiring and use Option 5

I see you have a datalogit...PM me for the codes for the GM 3 bar map sensor