1g Dsmlink Gm Map Install Problems

[eclipsetuner_21]

I pulled a gm map off a supercharged bonneville. I checked the number and it is a 2bar.
I hooked up the ground, ran the power to a 5v power source i found on a connector not used, and I ran the source to the ecu pin 15(egt).
I set it up in dsmlink as the gmmap 3 bar, but it seems to stay at a constant -10.5psi. Any ideas??

 

[1992awdlaser]

It has to be grounded to the ecu. Where did you pull the +5v source from? Did you tap into pin 15 or did you cut the wire on pin 15 and make this the only wire going to it? Also, that sensor isn't really good for anything. 1Bar is for atmospheric pressure. So you only have the ability to read the 1Bar that is left, which is 14.x psi.