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Opti spark question

This is a discussion on Opti spark question within the General Help forums, part of the LSx Technical Help Section category; My service engine is flashing again and I know I have a mis. This will be the third time both ...

  1. #1

    Opti spark question

    My service engine is flashing again and I know I have a mis. This will be the third time both other times I changed plugs and it was fine and everything then checked out on the computer. This should not happen this often, fouling plugs every 5K or less. I watched a program (two guys garage I think) said that the Ls1 has problems with the opti spark system after 100K and it can be intermittant (spelling?) at first so it may cause a problem but not show up when you put it on the computer. Could this be my problem? Can the computer tell you WHICH plug is mis-firing (and I know I can just look at the plugs and see) but what I am thinking is if the comp. can pin point which then I can switch opti spark packs and see if the mis changes to that cylinder thus pinning down if they ARE REALLY THE PROBLEM CAUSE EVRYONE KNOWS THEY ARE $600 FOR 8.

  2. #2
    Senior Member Orcus79's Avatar
    Join Date
    Feb 2006

    2002 WS6

    yes the computer can tell you which ones if its only one, if its more you may get a generic multimisfire code, but i am not 100% sure on that one.

  3. #3
    2004 HEAD/CAM CTS-V 9t8z28's Avatar
    Join Date
    Oct 2006
    doylestown, Pa

    2004 CTS-V

    You don't have a opti-spark. LT1's have the opti-spark.

  4. #4
    Pathelogical Liar BlackLT1Z28's Avatar
    Join Date
    Aug 2006

    94 Camaro Z28

    Quote Originally Posted by 9t8z28 View Post
    You don't have a opti-spark. LT1's have the opti-spark.

    You don't have an opti, so at least that takes care of that.

  5. #5
    Maybe a mis-use of term but it is a different "pack" for each cylinder. Don't know what is called thought it was opti spark. If the comp. can detect which cylinder I can pin-point the problem; whatever it is called. Thanks guys.

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