Explorer swap fuel question

[ntsqd]

That is not what my gauge shows and it is tapped into the rail at the test port. I've seen the spec for what my '96 FSB should be and it has never run as high as the commonly quoted spec. Ever. Not even with a new pump and new regulator.

Perhaps the 2000's FP is more than my '96's, but the description of how it runs is dead rich or it is not firing every cylinder.

 

[76Bronko]

That is not what my gauge shows and it is tapped into the rail at the test port. I've seen the spec for what my '96 FSB should be and it has never run as high as the commonly quoted spec. Ever. Not even with a new pump and new regulator.

Perhaps the 2000's FP is more than my '96's, but the description of how it runs is dead rich or it is not firing every cylinder.

What fuel pressure does your 96 like to run at? I will give it a try.

Thanks. Mel

 

[don k]

You not getting a vacuum leak somewhere?

 

[ntsqd]

What fuel pressure does your 96 like to run at? I will give it a try.

Thanks. Mel

Normal idle in gear is about 33 psi.

 

[76Bronko]

Normal idle in gear is about 33 psi.

Ok. What the heck. I'll try 33 psi tomorrow.

Thanks

 

[lars]

I don’t remember years but the later style with returnless fuel system had white top injectors that ran at around 65 psi. Which as I understand it is the type of injectors you are running. Older style, “orange top” AKA 19 pound injectors ran at nominal 39 psi. Probably useless data for you since it sounds like you have the new (white top) style, but in case someone else is reading…