Fuel pressure test

[oeanworker]

Can anyone recommend a brand or type of fuel pressure tester. Where is the best place in the system to put it? Before the fuel pressure regulator? Is there a testing port on a 91 4.0?
Thanks in advance.

 

[410Fortune]

You can get them at any good parts store.

Yes the fuel rail on a 91 OHV 4.0L has a schrader vavle to hook it up to.

It is just behind the pressure regulator, passenger side, below the upper intake plenum.

Should be 36-39# at idle I believe (dont quote me on that)