hello... im a newby and i hope someone can give a good answer 09 cobalt lt 2.2 79k 1 owner (ME) Has a bad catch up/slagtime when leaving a stop OR hard acceleration Changed the following.. fuel filter plugs and wires air filter cleaned MAF ran # diff fuel injec. cleaners over 6 months of so. always 100% gas BANGIN MY HEAD HERE.... OTHER THAN THAT CAR RUNS LIKE A SCEAMIN DEMON...ALWAYS HAS. DEALER SAYS IN SPEC BLA BLA BLA tps is in the tank with pump..NIIIICE How do i check fuel pressure? Im starting to think its a failing fuel pump..which was replaced with the recall BS cpl yrs back. I have scanned with my obd but not sure how to read certain % of certain things like M<AF MAP TPS etc Any place i can find SPECS online? THANK YOU IN ADVANCE FOR SOLID FEEDBACK WITH THIS PROBLEM!