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500efi wonít fire!

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500efi wonít fire!


Old 05-16-2019, 03:44 PM
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Join Date: Jul 2010
Posts: 105
Default 500efi wonít fire!

Bought a all rebuilt 500efi that froze, new short block. Very low ecm hours. Put it in customers boat hooked it all up went to fire it up and no go, it barks on one cylinder on the 2,4,6,8 bank but thatís it. Squirt some fuel into the intake plenum and away it starts right up and sounds good. Bled the fuel system down and rail pressure at key on is 42psi. Any help would be aprreiciated, days like today remind me how great a Holley dominator carb is. Thanks
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Old 05-16-2019, 04:05 PM
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Join Date: May 2012
Location: Midwest & T-Rock
My Boat: F2 Speed racer
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did you scan for errors ? you sure the injectors are firing
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Old 05-16-2019, 08:39 PM
Join Date: Jan 2006
My Boat: 30 Sutphen (for sale)
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check that you have 12v at the injectors.
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