Trying to ID a MAP sensor

[TR Custom Parts]

Working on a car that had two MAP sensors mounted side by side. One not being used. The one that is hooked up only has the numbers 9756-B6 and PBT-GF30 on it. The other one has a GM number of 12569241 and believe that it is a 2 bar. Trying to find out if the first one listed is a 3 bar but coming up empty. Does not have a GM label on it.

 

[pacecarta]

plug it in key on engine off and read the voltage at pin B green wire
if its 1.6v its a 3 bar , 2.4 v its a 2 bar, 4.9v its a 1 bar

 

[Benched]

http://i34.photobucket.com/albums/d119/Robie01/Projects/MAP/mapsensor.jpg

 

[TR Custom Parts]

1.62 volts so we are good to go. Finally got around to checking. Thanks.