Is fuel pressure set hot or cold?
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Supreme Member

Joined: Jan 2000
Posts: 1,199
Likes: 93
From: Mississauga, Ontario Canada
Car: 1987 GTA
Engine: 5.7
Transmission: T5WC
Axle/Gears: 3:27
Is fuel pressure set hot or cold?
I'm trying to solve another issue but would like to start here. On a cold engine my Fuel press is 50psi at idle vacuum connected. When it warms up it drops to 40psi vacuum connected. Am I supposed to set the pressure at that point?
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Is fuel pressure set hot or cold?
Is it the same hot and cold with the vacuum reference disconnected?
Thread Starter
Supreme Member

Joined: Jan 2000
Posts: 1,199
Likes: 93
From: Mississauga, Ontario Canada
Car: 1987 GTA
Engine: 5.7
Transmission: T5WC
Axle/Gears: 3:27
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Is fuel pressure set hot or cold?
That's good, but is it the same hot and cold with the vacuum reference disconnected?
Thread Starter
Supreme Member

Joined: Jan 2000
Posts: 1,199
Likes: 93
From: Mississauga, Ontario Canada
Car: 1987 GTA
Engine: 5.7
Transmission: T5WC
Axle/Gears: 3:27
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