94 4.0 fuel pressure

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GWag87

NAXJA Forum User

Location

lyncburg

• Dec 15, 2014

• #1

How much fuel pressure is required to run the obd1 4.0s?

 

J

Jeepfreak82

NAXJA Forum User

Location

Dallas, NC

• Jan 6, 2015

• #2

If I remember correctly, it is in the neighborhood of 40psi. I could be mistaken though and have misplaced my manual.

 

G

GWag87

NAXJA Forum User

Location

lyncburg

• Jan 6, 2015

• #3

My 94 4.0 has 48 or so I'm told

 

ehall

NAXJA Member

NAXJA Member

Location

Southern Maryland

• Jan 6, 2015

• #4

My 91 specs for 31 lb at idle but that was only for a couple of years. The whole fuel system changed several times on the XJ, different pump styles, evap systems, injectors, everything.

edit--oh I see you are asking about 94 in particular, dunno sorry

 

G

GWag87

NAXJA Forum User

Location

lyncburg

• Jan 6, 2015

• #5

This should take care of My fuel needs

96 corvette fuel pump on a 91 s10 blazer sending unit. I'm running a 20 gal 91 blazer fuel tank