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Stupid ass 3.1 (NEED HELP PLEASE)

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  • Stupid ass 3.1 (NEED HELP PLEASE)

    I have a 92 Lumina 3.1. It's a POS, and it's a long story, so it's going to be a long post. Right now, it has a problem that I just can't figure out. The car will fire up just fine, but then it will IMMEDIATELY die out, unless you rapidly pump the gas pedal. If you just floor it, the car will rev, and then hit the limiter, and then it will die out. I just took apart the whole damn top end and replaced the fuel pressure regulator, thinking that was the problem. Well, it wasn't. After a while of pumping, the car will warm up and idle- VERY roughly. While it's running, if you pull the vaccuum hose off of the fuel pressure regulator, the car will rev more normally and the idle will be normal. But, obviously, this is not normal. So, I'm in DESPERATE need of help, and I hope someone can help me dammit.
    Thanks very much
    Conley

  • #2
    How long has it been since the fuel filter has been changed?
    -Brad-
    89 Mustang : Future 60V6 Power
    sigpic
    Follow the build -> http://www.3x00swap.com/index.php?page=mustang-blog

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    • #3
      About a month.

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      • #4
        check all the other vacume lines to.
        To Many Mods To List, Check It Out At
        Joe\'s 95 GA GT
        3100 Best ET : 15.389 @ 90.48Mph
        3400 Best ET : TBD

        My Cardomain Site

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        • #5
          your cat may be cloged.
          Raceing a ricer is like running in the specail olympics. Even if you win your still retraded.

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          • #6
            Could be a big vacuum leak. Check the vac line going to the MAP sensor in particular. Also the line going from the plenum to the PCV valve on the rear valve cover.
            Brian

            '95 Cutlass Supreme- "The Rig"
            3400 SFI V6, 4T60e
            Comp Cam grind, LS6 valve springs, OBD2 swap, Tuned
            2.5" DP/ 2.5" dual exh/ Magnaflow Cat/ crap mufflers/ 3500 Intake manifold/ 65mm TB
            TGP steering Rack/ 34mm Sway Bar/Vert STB/ KYB GR2's

            '08 Chevy Trailblazer SWB 1LT "Smart Package"- LH6 5.3L V8/4L60e, A4WD

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