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Thread: 60143 MSD box won’t stay running.

  1. #1
    Join Date
    May 2010

    Default 60143 MSD box won’t stay running.

    I have this box installed it did run for about three minutes. Next it would start & run for about 20 seconds then die, restart and run for 10 seconds the die then not start. Now it will fire only with starter running. It’s got the early truck coils, so I’ve got it set on the “truck” setting. Replaced both crank & cam sensors no effect. Where do I go from here?

  2. #2


    Where do you have the main positive & negative wires going to?

  3. #3


    Also, if at all possible please connect this unit to a laptop to see if you're getting any errors and when cranking it see RPM, so we can better diagnose the issue.

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