What is "normal" Fuel Pressure?
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The Cursed FD
Joined: Nov 2001
Posts: 914
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From: CA
What is "normal" Fuel Pressure?
What should a normal idle fuel pressure be? what about in WOT? and what about startup? Thanks guy!
PS: I did a search and didnt really find anything specific
PS: I did a search and didnt really find anything specific
Hamado things my way!
Joined: Oct 2001
Posts: 1,245
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From: Pensacola, Florida
With the key on but engine off it should be 36-38psi. With the key on engine off and the line pinched it should be 71-106psi. At idle it should be 28-32psi. Mine is actually higher 45psi at idle, or my gauge is off. It runs fine though.
And for boost conditions: 36-38PSI at 0 psi boost, above 0psi boost it is 36-38 + boost. Thus for 12psi boost, fuel pressure should be 36-38 + 12 = between 48 and 50 psi fuel pressure.
Most of this is in the Mazda Maintenance Manual. The first tool one should buy!
Most of this is in the Mazda Maintenance Manual. The first tool one should buy!
Senior Member
Joined: Jan 2002
Posts: 689
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From: Wausau WI
Originally posted by cewrx7r1
And for boost conditions: 36-38PSI at 0 psi boost, above 0psi boost it is 36-38 + boost. Thus for 12psi boost, fuel pressure should be 36-38 + 12 = between 48 and 50 psi fuel pressure.
Most of this is in the Mazda Maintenance Manual. The first tool one should buy!
And for boost conditions: 36-38PSI at 0 psi boost, above 0psi boost it is 36-38 + boost. Thus for 12psi boost, fuel pressure should be 36-38 + 12 = between 48 and 50 psi fuel pressure.
Most of this is in the Mazda Maintenance Manual. The first tool one should buy!
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