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Thread: 83 K5 Blazer

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  1. #1
    Fuel Injected!
    Join Date
    Feb 2013
    Location
    Euless, TX
    Posts
    2,333
    You have to shut off the engine in some years before the ECM will command timing advance again.

  2. #2
    Carb and Points!
    Join Date
    Sep 2014
    Age
    41
    Posts
    8
    yeah i shut it off when i plugged and unplugged i was afraid to shocking the system. I think some how the EST is bad or went out. i have one on order.

  3. #3
    Carb and Points!
    Join Date
    Sep 2014
    Age
    41
    Posts
    8
    So i changed one of the patches BPW and Spark to enabled. Got rid of the stutter and timing issue. I just have to keep reading and learning to read the log.

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