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Old 06-13-2018, 10:49 AM   #15
determined
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Join Date: Feb 2018
Location: Saskatchewan
Posts: 17
Re: '89 K1500 engine replacement help

Quote:
Originally Posted by custom1970 View Post
Think your right. I see the oil press/fuel pump sensor on the wiring diagram. Looks like it has and orange and grey wire. Think if I connect those together it'd fool the pump into running?
And yes, after the initial burst of gas to the carb it does run out of gas.
Thanks
Problem with fooling or bypassing the system is the potential for the pump to dump a continuous flow of fuel on a hot engine when a line or fitting leaks or is damaged in an accident.
Additionally should a needle and seat stick (never happens on a Holley right ) you will promptly fill your crankcase with fuel when the key is turned on.

Either install the required oil pressure sending unit to keep the system working as it was designed or install a mechanical pump.

If you go with a mechanical pump the in tank pump will have to come out as it will hinder flow once you get up to highway speed.
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