Anyone know how to test a GM 3 Bar Map Sensor?
 

Quick story of what happened.....

Everytime I would turn right, my car would peter off and die. Finally it wouldn't start up. I looked underneith my front drivers side fender and the tire had rubbed through the wiring harness. It rubbed through the map sensor wire. I bought another gm map sensor today and either I fried it too or the connection is still bad. I tried to fix the problem originally.

Anyhow, does anyone know how to basically test this gm 3 bar map sensor? Just a basic test would work.

Thanks.

Do you not have a wheel liner?!

-Alex

No, the tires would have rubbed right through them anyhow.

Anywho, anyone know how to test this sensor?

In or out of the car, how do you want to test it?

I calibrate my PFC to map sensor using my air compressor with the regulator at about 40psi. Then between that and the map sensor and boost gauge lines, I place a 0-25PSI pressure regulator. With a DATALOGIC attached to the PFC and my laptop, a pen and notepad, I can go from 0 to 25psi logging boost verses what the PFC says. Then I reset my PFC P rows to what I want.

Well, while the car is off my commander shows -468 . When it's running it jumps up to -700 . When I give it gas the gauge shows --------, nothing.