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Thread: Dual Sync LED stays.

  1. #1

    Default Dual Sync LED stays.

    I’ve installed a Holley Dual Sync distributor in my 632 BBC. It’s connected to a Performance Electronics 8400 and no CDI box. My concern is that when rotating the distributor to sync the crank LED dims, but does not go out, upon checking trigger data I shows that both the cam and the crank sensor are sending signal, but it'll randomly pop & die and with a timing light you'll see the top center mark go super advanced. Any idea? I have the distributor ground to the sensor ground, which seems odd since there is +12V going into the distributor. Thanks.

  2. #2

    Default

    They made the Dual Sync distributors to be plug & play with Holley EFI units. Have you spoke to your ECU manufacturer to verify compatibility?

  3. Default

    Yes, it'll be good to speak to the ECU manufacturer. Tell the result please.

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