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Thread: using SCAN to diagnose fuel problem

  1. #1
    Lifetime Member Boost's Avatar
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    Question using SCAN to diagnose fuel problem

    How can I best use my EFILive to help diagnose a starting problem on a 2002 with water in the fuel? The tank has been flushed and the filter changed, it runs on ether but won't start. More specifically, what paramaters / data can I monitor to diagnose the problem? Thanks!
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  2. #2
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    Never start the Duramax with ether it is well documented it can DESTROY your motor. Several have had an over rev and broken everything from rods to rockers.

    I would suggest a lift pump with a dedicated water separator, much cheaper insurance to make sure you have fuel and it doesn't have water in it.

  3. #3
    Lifetime Member Boost's Avatar
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    Thanks, and I agree with you. I would never do that, this is an older gentleman that doesn't know much about cars, just trying to help him. He did all kind of "ghetto stuff" before I got there :(
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

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