Question about MAP Sensor
 

When I put my LT8s in my car, I have the N318 map sensor which is a 4 wire sensor, and I want to run a 3 bar GM MAP sensor, can I make an adapter with a GM 3 bar MAP pigtail that plugs into the clip from the factory harness and just remove the 12v wire from the adaper. It apears that Banzai Racing has done something like this. If I do that will the LT8s function properly?

Here is what Banzai did for the S4 N318 map sensor plug to adapt it to a GM 3 bar MAP.

http://www.banzai-racing.com/how_to/..._adapters2.jpg

I just researched my ecu a little more in depth, turns out the map is built into the ecu. I was wondering what that nipple is for.

But now what if I want to run a 3 bar MAP instead of the 2 bar thats built into the ecu, how would be wired in?

You have to send the ecu back to microtech to get it reconfigure for a 3 bar.