Downloaded the torque app and been using it for this pass 5months now. The boost vacuum was reading -23hg at idle and 15psi at full boost but now its reading -55hg at idle and no boost. If I WOT it the gauge will go down from -55hg to -33hg.

Is the supercharger dead? do I got a vacuum leak some where? Engine seems to be pulling a lot of vacuum some how. Try getting a code but no codes or CEL lights on. Try zip tying the BPV but still the same thing. Dont have any fluctuating of RPM and its a steady 799-888. You can hear the supercharger but doesn't feel as if it has as much power.

Any help will be great. I'll post a picture of the app.

 

 

Your car is fine, there's something wrong with the app. It's physically impossible for the intake pressure to be -55"hg. A perfect vacuum is somewhere around -30"hg. Going below this is kinda like going colder than absolute zero. Can't be done.

 

Go into your vehicle profile and see if the boost adjustment is 0. If not, try 0 first. If that doesn't work, switch it to 14.7 psi (or -14.7 if positive makes it worse). Turn on the ignition but don't start the car, you should read near 0 on the gauge.

 

DUH! Should've thought about that in the first place, it was the app indeed. I just reseted everything and now works like it should. Now the SES is on and got a real vacuum leak some where or the MAP is going out. BLAH!

 

glad you got it, i was gunna say, if you had a vacuum leak, there wouldnt be more vacuum =)