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Old 08-11-2002, 22:57   #1 (permalink)
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Question Fuel pump pressure

Hey all,

asking for a mate....

Can a fuel pump off an ea deliver 40psi of fuel to the fuel solenoid from the fuel feed line going to the fuel rail?

Any ideas on how to test this?

not sure why he wants to know ......


thanks,

Brendan
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Old 08-11-2002, 23:17   #2 (permalink)
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It's all up to the fuel pressure regulator. It actually restricts the fuel going back to tank, which gives you the pressure..Best is after market variable regulators...Std f/p is 38lp I think.. In essence yes..
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Old 08-12-2002, 03:28   #3 (permalink)
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anyway to test what it is exactly?
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Old 08-12-2002, 05:22   #4 (permalink)
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Tee off a pressure gauge in the fuel delivery line to read fuel pressure direct. Should be 200 to 250 kpa at idle. Clamp hose going into fuel rail and pressure should rise to at least 400kpa. If pressure does not increase fuel punp is faulty.
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Old 08-12-2002, 16:48   #5 (permalink)
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thanks lsd0,

Also he wanted to know what the fuel pressure should be at full throttle as opposed to idle?

thanks again,

Brendan
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