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Thread: 7747 fuel relay and diverter valvet on key up

  1. #1
    Carb and Points!
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    May 2017
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    7747 fuel relay and diverter valvet on key up

    Both my air management diverter valve and fuel pump relay are clicking about 4 times per second on key up running through Moates emulator.
    I am running TunerPro. L19 454 TBI system. Has anyone experienced this?
    Last edited by 74L19; 08-16-2017 at 10:10 AM.

  2. #2
    Fuel Injected! sturgillbd's Avatar
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    Are you able to read codes through Tunerpro or using check engine light? It almost sounds like you are in Limp Mode.

  3. #3
    Carb and Points!
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    I believe that happens when TunerPro is reading data from the ALDL. That may be why. I will know when I burn my final prom and am not logging data. No check engine lamp when reading data.

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