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  #1   IP: 66.103.46.88
Old 08-18-2023, 02:16 PM
MarkAllan MarkAllan is offline
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Fuel pump how many psi does it need to be?

How to test a electronic fuel pump? If I put a Guage to get how many psi should I be getting?
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Old 08-18-2023, 03:25 PM
Dave Neptune Dave Neptune is online now
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About 1 1/2 ~ 2 lbs for most and 2 ~ 4 for the E-35 Mk II and Cat 30.

It doesn't take muuch to feed about a gallon an hour.

Dave Neptune
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Old 08-19-2023, 09:37 AM
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Note you want the gauge on a running engine, not just on the pump. Results may vary otherwise.
My experiments show the engine is pretty tolerant of fuel pressure, it seemed to do fine at 1 PSI and just fine at 4 too.
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