Not sure what your thinking of as STC but I don't think your truck has one. It goes between HPOP and branch tubes on the later style pumps.

 

The connection at the HP oil rail on each bank is a snap to connect (STC) is where my head was, kinda like the A/C fittings on ford toys. Anyway, I have learned that I will need to remove the ICP and put a fitting there to supply air pressure. I was told shop air, which to me means 120psi. Can you agree or correct me on this? I think Blaze35 said not to go to fast so as not to damage the IPR. Oh, I picked up an O'ring for the IPR this am. The piece of plastic was a part of the crossbar that went across the screen, I guess the rest of the crossbar is in the system or crankcase not sure. Will be Fri. & Sat. before I get to the ICP removal.
Thanks again for the help, not just you but all the responses have been greatly appreciated.

 

Issac delayed me last week. I have the IPR back in, no change. Sounds like an old Perkins tractor trying to start. IPR 77.6%, ICP less than 350psi. Code 264, cyl #2. I hope to get off work in time to pull ICP and put air test adapter in tonight.

Can someone tell me what psi to run and should I remove valve covers?
Anyone looking for a nice truck to drop a good engine in?

 

Subscribing,,,,, in case you didn't catch it,,,,,cheezit suggested the hpop, makes sense... Naturally you will see high ipr %'s if the pump isn't moving enough oil to keep up. The 03-04's pumps were more prone to failure than the 05- up years. My money would b on cheezit.

 

P0264 INJ Cylinder Number 2 Injector Circuit Low Open circuit, fuel injector, FICM connector loose

Have you have checked the harness with a DVM to this injector yet^^^??????
you can also Bubble test inject too

check ficm connectors

Take the cap off the oil filter to listen when you blow it with air sometimes a bad HPOP will show itself this way

Kinda looking like a New HPOP and inject and Oil Cooler when it rains it pours try these other tests first Good Luck

 

ohm out #2 injector coil. im thinking #2 may have poped a bolt loose and may also be the cause for the high side oil leak

 

I just got home from work. Have printed everyting. TOMORROW is my 26th wedding anniv. so it may be Friday before I get started on the checks from Blaze35 and Cheezit.
Thanks so much for the help. The guy I bought from said this was a great site for help.

 

I wanted to update anyone following this post. I went back to square 1 today after work. Earlier post I noted "zip ties" on FICM connectors, I did not put ties back on during install. Put "zips" on connectors,(the lock clips are broken) and P0264 code is gone. Truck starts right up. Lesson learned
Still have the high IPR%. Will connect "air test fitting" to ICP tomorrow and post.
Does anyone know if you can change the FICM connectors? Also, I found a cracked plug on #8 inj at the head, can it be replaced or new inj needed?

Thanks for the help Blaze35 and Cheezit, I was going to ohm #2 when I found the bad connector.

 

need either a connector wich is not sold, if you get lucky u will need to repin it and not splice it.
ficm connectors can be had in the aftermaket.

 

Mr. BLADES35,
I think I may be on to something. I read another post you had about your truck going south on you while looking for the pin #'s for inj #2. It turned out to be your ICP. With that said.
I finally got home before dark today and disconnected the ICP for my air leak test, said to self, heck crank it up and see what happens. Do theses numbers mean I may just need a ICP:

KOEO:
IPR: 14.4 %
ICP: 0.0 psi
warmed up to 186 WT and 184 EOT
IDLE:
IPR: 32% +or -
ICP: 688psi +or-
2500rpm
IPR: 47% +or-
ICP:1500psi +or-
I am ready to remove ICP and do air test, just a thought from your other post. Thanks for all your help.

 

WHAT A DUMMY!!!!!!!! I finally realized that with the ICP discon. the IPR defaults. Tried to pull around the yard, no torque. In with the air test connector. May have some answers or more questions later.