Fuel pressure ?s

[87wildside]

Two questions here.
1) What is the fuel pressure for my 2000 4.3?
2) What is the fuel pressure for a CPI say 93-95?

[jgx421]

I found this from the autoshop.net, refering to your 2000 4.3.


Vortec 4.3L 5.0L and 5.7L engines from 1996-2002 have been found to be very sensitive to fuel deposits in the fuel injectors. The Vortec Central Sequential Fuel Injection system utilizes a unique fuel injector for each cylinder. The injector coil is located in the central 'spider' with a tube sending the injected fuel to a poppet nozzle in the port of each cylinder. These poppet nozzles require >45psi fuel pressure to open when working properly. If the poppet becomes contaminated or the fuel pressure is lower than specifications, the injector will not fire.

[87wildside]

Thanks.
That tells me the CPI pump will work for this POS.
Where's John? He knows what the CPI pressure is :)

[Jongo88]

CPI is 58 to 64 psi.
yours is 55 to 61 psi
Does that help.

[Jongo88]

Where's Eric??? He has what he needs now...

[Jongo88]

lol...:D

[Mikz86TA]

eh....get over here!

[87wildside]

Wooo! It'll work!!!

[12sws27]

X2 on what Jongo said.