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  1. 0

    5.7l Black Scorpion intermittent starting

    Negative to ground on the engine, red to small post the slave.
  2. 0

    5.7l Black Scorpion intermittent starting

    It is the 5.7 black scorpion
  3. 0

    5.7l Black Scorpion intermittent starting

    This is the black scorpion engine
  4. 0

    5.7l Black Scorpion intermittent starting

    I have 12v ALWAYS on the 2 small posts on the slave. Not just when the key is in start. Any time the battery switch is on.
  5. 0

    5.7l Black Scorpion intermittent starting

    Had a used to be Merc machanic take a look. His thought is a corroded or bad wire from the dash to the engine bay. He said to grab a multimeter and start testing each one. Tedious, but easy… I will keep the group updated on what I find. There is full voltage on one side of the slave, other...
  6. 0

    5.7l Black Scorpion intermittent starting

    Changed the ignition switch, seems to help some, but not fix the problem completely. Or maybe dumb luck it seems a little better… I have tried messing with the throttle, and didn’t seem to be the issue. I will pull the neutral safety switch and do some testing.
  7. 0

    5.7l Black Scorpion intermittent starting

    I have a 2006 centurion Enzo with the 5.7l black scorpion. Bought last week. Test drive went great, get it home and have intermittent starting issues immediately. Starter seemed to have a dead spot, put in a new starter, no change. Put in new slave relay, no change. Removed engine ground...
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