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Ws6 backfires and shuts down at 5000rpms

This is a discussion on Ws6 backfires and shuts down at 5000rpms within the Computer & Tuning forums, part of the LSx Technical Help Section category; anyone ever had this problem? the car is dyno tune and ran perfect. this happened all of a sudden. The ...

  1. #1
    Junior Member
    Join Date
    May 2007
    Location
    butler, PA
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    11

    Ws6 backfires and shuts down at 5000rpms

    anyone ever had this problem?
    the car is dyno tune and ran perfect. this happened all of a sudden. The car starts up fine and idles & cruies fine. But when the car gets to about 5000 it will backfire and shut off. Its starts right back up though perfectly.

    fuel pressure is 58psi
    new crank sensor installed
    grounds checked

  2. #2
    Life in the Fast lane sunsetorangess's Avatar
    Join Date
    Aug 2005
    Location
    Bragg NC
    Posts
    2,835

    Met. Sunset Orange
    01 SS

    What mods?
    J
    2001 SS, Its not the car its the Driver that matters....

  3. #3
    Junior Member
    Join Date
    May 2007
    Location
    butler, PA
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    11
    head/cam setup

  4. #4
    Junior Member 98_Ws6_scooter's Avatar
    Join Date
    Sep 2007
    Location
    Southwest Va
    Posts
    52

    Red
    1998 Trans am A4 Ws7

    sounds like the knock sensor.... sensing danger and turning the car off

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