fuel pump pressure?????? 91 2.4L whats the stock pressure?????

[scottg]

can anyone tell me what the stock pressure should be im switching the tank on my truck and need a in-line pump instead of the chevy in tank i have

[LSR Mike]

at idle 38PSI, with the pressure regulator Vacuum hose disconnected, 47-53 PSI

[BradMph]

Hey Mike is that what the tank pumps put out? Just wondering because that seems like a lot of fuel pressure. My Carter is regulated with a holley at 3-4psi. 2.0L G63B. My mechanical stock pump on the head was right around the same pressure as well.

[LSR Mike]

Straight from the Haynes manual.

[pennyman1]

that is right for an efi truck

[DroppedMitsu]

This is EFI not carb, fuel injection uses a lot more fuel pressure. What Mike quoted seems about right, I know my 4g63t stock pump and system is somewhere in the mid 40s

[recian]

Yeah the EFI requires closer to 40 to work. The carb'd engines going close to 10psi can blow out seals and such in the carb.