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Thread: Holley EFI Dual Sync BBC Distributor NO Spark

  1. #1

    Unhappy Holley EFI Dual Sync BBC Distributor NO Spark

    I have a 1968 Camaro running a Terminator and a HEI distributor. After reading many good thinks about the Holley Dual Sync distributor I made the move and purchased one. I installed the Dual Sync as per information to the letter, I now have no spark. My laptop pops up with a window:

    Crank Sensor Inductive Delay
    Your Crank Sensor “Inductive Delay” value is greater than 50. This typically will result in over-advanced ignition timing at high RPM with a Hall-Effect sensor. Make sure this value is correct.
    OK, I have triple checked my installation and for the life of me I can’t find were I may have gone wrong. Is there other parts required? I went as far as reinstalling the HEI and bang, turn of the key and the car runs. Put the Dual Sync back in following all the instructions and yep nothing. NO spark. Help!!! Thanks, Sean

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    24,118

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    Quote Originally Posted by GAS View Post
    Crank Sensor Inductive Delay
    Your Crank Sensor “Inductive Delay” value is greater than 50. This typically will result in over-advanced ignition timing at high RPM with a Hall-Effect sensor. Make sure this value is correct.
    That's actually not what this warning message means.
    It means if left unsynchronized, the timing can advance beyond what the Timing Table specifies.
    That's just a warning message to ensure you synchronize the timing at higher RPM (Inductive Delay).
    After synchronizing the timing, ignore that warning message and never adjust the Inductive Delay again.
    With the Holley EFI software, you have the option to disable this warning message in Toolbox, Preferences.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 11.8:1 comp, TFS R-Series FTI ported intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 MT tires.

  3. #3

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    Hi Danny, and thank you for the quick reply. When I disable the warning will this enable the system to work? Or do you believe that I've made a mistake elsewhere fitting the Dual Sync distributor? Regards, Sean

  4. #4
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    24,118

    Default

    Quote Originally Posted by GAS View Post
    When I disable the warning will this enable the system to work?
    No, it will only disable the warning message.

    Or do you believe that I've made a mistake elsewhere fitting the Dual Sync distributor?
    If there's no spark, then something else is wrong.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 11.8:1 comp, TFS R-Series FTI ported intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 MT tires.

  5. #5

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    I had the exact same issue. I ended up returning the Dual Sync distributor because the car would fire right up with the HEI. I worked on it for weeks without getting it to ever fire.

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