00' MPFI V-8 Merc, how much fuel pressure?

[redssv]

I have a 2000 Mercruiser 350 Mag. with multi port<br />fuel injection. It has the single fuel pump that<br />is intergrated with a in line copper water radiator.<br />My fuel pressure is below 30 PSI. and 3000 RPM is<br />all she has.<br />Should the fuel pressure be around 40? I think it<br />should have 60 to 80 PSI max.

 

[Don S]

Re: 00' MPFI V-8 Merc, how much fuel pressure?

34-38 psi<br />If too low, could be pump, injectors, or pressure regulator, or restriction in the fuel system prior to the engine.

 

[redssv]

Re: 00' MPFI V-8 Merc, how much fuel pressure?

#2 injector was stuck open, and may have been caused by low fuel pressure. Thanks 4 the info DON S.