Well I was driving the balt yesterday and gave it WOT and when i did that about the end of first gear it threw a check engine light an then went into reduced engine power mode or "limp" mode. We plugged a scan tool in and it came up P0068 and P0069. We checked to see how much vacuum it was runnin and it was runnin 9 or 10 but my gauge said 20? We unplugged the sensor on top of the super charger and the vacuum didnt change. We unplugged one on the left side of the supercharger an the vacuum disappeared off the scan tool. I'm thinkin that sensor has to be bad? Correct me if I'm wrong please!!!! If it is what is the sensor called? I took a couple pics to help?? Please give me info or input!!

 

That is your MAP sensor. It sounds like it failed.

 

Alright I thought that was the MAP sensor but wasn't sure. Didn't know if the MAP sensor was the one on top of the supercharger or on the side of it.

 

The one on top is a barometric sensor.

 

How much vacuum is there supposed to be?