Fuel Pressure Regulator

[Ldub]

Has anyone ever tried an adjustable fuel pressure regulator?

Check the "similar threads" @ the bottom of this page & you'll find what you're looking for.

[JHarris1385]

So I finally got my FPR in mail today from drivewerks.com. But I come home to find out that my retaining ring pilers tips are too large to fit through the holes.

Question is are these pilers easily purchased at HD or Lowes in smaller tip sizes?

[uncle_asa]

So I finally got my FPR in mail today from drivewerks.com. But I come home to find out that my retaining ring pilers tips are too large to fit through the holes.

Question is are these pilers easily purchased at HD or Lowes in smaller tip sizes?

In worst case you can use file on what you have But I think HD/Lowes/Sears should have them in right size.

[JHarris1385]

Bought some new ones with multiple tips and angles. They are great. BUTTTTTT. Iv got the fuel rail almost completely off and can not get the bolts that attach the black cover over the fuel pressure regulator unbolted from the common chamber. Even PB blaster has not worked yet.

Ill post pics later, if you all do not know what bolts I am talking about. They are completely round and require a large allen wrench. Talk about leverage with an allen wrench.

Has anyone done this repair yet?

[uncle_asa]

Bought some new ones with multiple tips and angles. They are great. BUTTTTTT. Iv got the fuel rail almost completely off and can not get the bolts that attach the black cover over the fuel pressure regulator unbolted from the common chamber. Even PB blaster has not worked yet.

Ill post pics later, if you all do not know what bolts I am talking about. They are completely round and require a large allen wrench. Talk about leverage with an allen wrench.

Has anyone done this repair yet?

If I understand correctly, you talking about the bolts marked as 340 here:

Mine bracket was holded with the internal hex on the side and regular metric bolt on the rear actually The side bolt was replaced with the regular bolt at the end, though - I also almost rounded it with not 100% fitted tools

[JHarris1385]

Nice diagram, where did you pull that from?

I gave up on it for now going to try tomorrow maybe the pb blaster will soak in more by that time.

I almost busted the allen wrench trying to lossen it.

[Ldub]

Nice diagram, where did you pull that from?

I gave up on it for now going to try tomorrow maybe the pb blaster will soak in more by that time.

I almost busted the allen wrench trying to lossen it.

For the diagram, check the right sidebar under "downloads".

Go to Sears & get a set of 3/8" drive metric allen wrenches (that fit on a ratchet) if you haven't already...they work tons better than the cheapo L shaped ones.

[uncle_asa]

Nice diagram, where did you pull that from?

It is from Isuzu EPC which is normally used in the shops to identify part. You can get a copy of it from (4 files):
http://rapidshare.com/files/17016667/howto.txt
http://rapidshare.com/files/3522739/..._epc.part3.rar
http://rapidshare.com/files/3511727/..._epc.part2.rar
http://rapidshare.com/files/3494986/..._epc.part1.exe

Other very usefull documents:
Workshop manual (the best source to know how to unscrew something, I prefer it to the s/w from Tone): http://rapidshare.com/files/17008740/IV00.01.pdf
Electrical Troubleshooting Manual (the one that was distributed by nfpgasmask in paper form, scanned): http://rapidshare.com/files/17003942/ETM_VX99.pdf

Some other Isuzu related software/documents: http://rapidshare.com/users/OSBSEO