09 LT with a prob...

Discussion in 'LS, LT, LTZ' started by mint lt 09, May 14, 2018.

  1. mint lt 09

    mint lt 09 Junior Member

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    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!:)
     

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