ZD30 engine not sending fuel when cranking but will when the key is released

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millettepaul

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Hello everyone. I'm having a problem with a ZD30 engine. It will not send fuel while cranking but as soon as you release the key, fuel will be spitting out from the line. can anyone please help?
 

tweak'e

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check for interference on the crank sensor.
some people have had worn starter motors, relays and a few other gadgets generate interference on the crank sensor.
i'm guessing here when you let go of the key your killing power to whatever is making the interference and there is enough momentum in the engine to turn over and fire an injection pulse.
 

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