I have a problem with my 2006 Chevy cobalt SS supercharge . This morning when I was going to work I was getting on to highway I accelerated two 45,000 RPMs. My car started to feel like it was about to cut off for not having gas. When I accelerate it again I was losing power and my car shut off . Thank God I got it started again but I have to drive slow i can't accelerate fast. I stop by an auto zone and they ran a diagnostic my car the code is Po442.

 

Only at 45000 rpms?...

 

Yes

 

Lol you must have a jet engine if your running 45,000 RPM's. Lol I'm sure you mean 4,500 RPM's

 

It could be one of these issues, check as many as you can.

A loose or improperly affixed gas cap
A small leak/hole in a fuel vapor hose/tube Other small leak in EVAP system
Defective purge valve
Defective leak detection pump

 

Haha I was waiting for it. I couldnt resist.