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  1. B

    12200411 PCM swap for 1996 to 2000 GMT400 trucks

    I have checked multiple times tried moving it a tooth ahead. A tooth back. I was hoping the new cam sensor would help but still nothing..
  2. B

    12200411 PCM swap for 1996 to 2000 GMT400 trucks

    Hey guys I'm new to the page. Recently built a new motor for the truck and decided it was finally time to do the 0411 upgrade. After nights of figuring out why it wouldn't run I targeted it down to the cam sensor. As soon as I unplugged the cam sensor on the distributor it fired right up and...
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