Recently purchased my Cobalt SS.
After some distance and a stop for lunch, on the next engine on, the RPD Boost screen was showing "Data Not Available" in the middle of the gauge.

So my first story with the new toy is to fix this issue.
Seems to be simple, since the car is working.

Any idea on how to fix that?
Sensor? Where?

Thanks a lot.

 

Probably a bad cam solenoid, check the code.

 

Will do. Obd reader is arriving this week.

 

Like so? IMO you've either already lost or are about to lose a MAP sensor. I think it reads off the upper one but don't quote me on that.



Upper MAP sensor is located here:

 

You might be on the well track as you are not the first person to advise about the MAP sensor.
Anyway, this morning the boost gauge was working. It seems it gets crazy when the engine is hot...

 

Bad sensor or wire more than likely. You'll know what it is once you get your code scanner.

 

Code showed intake manifold pressure error. Disconnected, reconnected, cleared error and everything seems to be working again. Quick note, it is the 3 bar sensor. Came with the car when I bought it.

 

I just got an 09 cobalt ss/tc and everything on the RPD works except the boost reading. it doesnt say "data not available", but instead the boost reading just stays at 0psi no matter how i drive the car but i scanned the car and theres no codes or check engine light. im stumped.