How can i tell what GM 3 bar map sensor i have? The AEM software has three listed all with different boost/vac ranges. I have it mounted on the firewall and it would be a big pain in the *** to pull it off. I can see the front (the side the pigtail clips into) but none of the number on it are the part numbers.
I bought it from wired speed lab like last year..??

 

http://www.robietherobot.com/storm/mapsensor.htm

 

all mine says there is the pinouts A, B, and C. Guess im going to have to pull that bitch off the firewall.