03 f250 with the 6.0. So after new HPOP, ICP, and IPR the truck ran strong for about 2 weeks and one Sunday afternoon went out to run into town and wouldn't start. First start up of the day. Checked out FCIM and was getting around 37v and down to 26ish cranking. So got a known good one and put it in only to break off one of the clips on the middle connector. Tried starting and no go. Got solid 48v even during cranking. It cranks and as soon as the ICP hits over 500 psi it really wants to start but wont. Put the batteries on the charger, wiggle the wires and the plugs, try to start and it starts for like 15 -20 seconds and dies. During that 15 - 20 seconds the IPR stayed around 77% and ICP was around 750 psi. Thinking plug or wires I zipped tied the connector snug and tried it again ( I know this might be it, but need advise before putting any more parts on this thing before my wife divorces me for depleting a big chunk of our savings already) back to no start. No codes. So now when I crank these are what the scanguage says.

first numbers KO/ second numbers cranking
ICP = 21/580
IPR = 14.4/77.6
FMP = 48/48
FLP = 12/11
SYC = 0/1
RPM = 0/202

Any ideas???

 

those number your truck should be running. you need to do a little bit more digging around.

 

I agree. With those numbers, your truck should be running. Are you getting fuel to the engine? Have you done an injector buzz test yet?

 

To me thats right on the Border line in RED

With IPR% at 77% ICP should be 800psi and Probably Higher over 1000ICP IMO
Do you know if you have OEM OIL Filter and CAP????

 

I have fuel pressure around 62 psi. I don't know how to do a buzz test without having AE. I do have motor craft filter and oem cap. I tried starting this morning and again started, ran for 30 seconds the ICP went up to 790 psi and the IPR stayed at 77%. tried tapping the gas pedal and it didn't change anything. I checked all fuses also.

 

to me I think you still have a HPO Problem

do your injectors at least do there precycle Buzz at KOEO

At idel the ICP at 790psi is OK

But it should have came off 77%IPR upon startup

so Im thinking Bad HPOP or Leak

 

I just went out and turned the key on and listened at the injectors, sounds like #2 is out of sync with the rest and they sound a little slow and get faster or more powerful. And the idle is a weak idle.

 

How do you know the FICM you using came from a Known Good Doner

I still think its HPO Problem 77%IPR should have droped to High 20s so 28,29 30maybe when it did start

I think it should run with a Bad Injector Rough But run

your bad FICM might have killed an Injector IDK

My Gut still says HPO Problem thats the Bad Number At the Moment

 

I guess I don't know for sure but I got the FICM from ronh12 off ebay. He has sold about 2000 of them with 100% rating. He said he had tested it and had it on a running truck and it has the latest flash. He also does the youtube videos under DieselTechRon. He confirmed on my old one, the power board was junk replaced it and the FICM worked fine.

Why wouldn't the IPR drop after start? Crap in the screen? Could the FICM going out kill the IPR?

The day before the no start the truck ran strong and I was getting 3600 psi at WOT.

I did try unplugging the ICP and it did go into default 1500 psi and the IPR was at 44% but did not start.

 

In Bold is why I asked about the Oil Filter and CAP cuz the wrong setup will cause unfiltered oil to go threw and Kill IPR

So ARe you 110% on the OIL FILTER CAP I can post a Pick if Unshure its very important. When unfiltered oil gets on the IPR Screen it cant drain so it will build HPO till the IPR Gets BLOWN OUT

The FICM Wont harm the IPR

Normaly if the IPR stays HIGH Number theere is a LEAK or IPR IS Bad and dont work right

 

Basically with the IPR% at 77% its Closed and doing All it can to get the 700-800psi ICP

When Really at 77% IPR your ICP should be 3500-4000 PSI ICP Especialy at IDEL when RPM is 600+

the IPR has no Position sensor so hard to say if its working right BUT Since its a New IPR we will say its OK For Now

It all points to a HPO Leak or Weak pump (possible Bad IPR but since new will say its OK as long as you have the right OIL Filter CAP)

 

Yes sure on the cap. I guess next step is to pull IPR and have a look see. I edited my last post about the same time you responded but I did pull the ICP plug for it to go into default and at 1500 psi the IPR was at 44% but no start.

 

just for kicks check this out

BOTH STYLE OIL FILTER CAPS YOU WANT THE ONE ON THE LEFT SIDE ITS OEM

https://www.ford-trucks.com/forums/1...l#post11094677


Click here^^^^^^^^^^^^^^^^^^^^^^^^^^^^

 

OK Great I would think the IPR is OK then

When you pull ICP Plug and it defaulted and Still Did NOT Start that just means ICP Sensor is OK and the problem is Likely a Bad HPOP or Leak

You need to do an Air Test of the HPO System IMO at this Point

HPO VIDEO #1
http://youtu.be/SHBJ9az4PbE
HPO VIDEO #2
Found source of HPO System Leak - 2004 Ford F250 6.0 Powerstroke - YouTube
HPO VIDEO #3
Ford F250 6.0 Powerstroke Successful High Pressure System Air Test - YouTube

 

Up and running!!! So I didn't see your last post until now. I pulled the IPR and the screen had a bunch of stuff in it, must have been stuff from when I did the HPOP. I swapped the IPR out with another one put it back together and started right up and idled normal. Getting 900 psi and around 26% at idle. Shut it back down and going to change oil and filter agian. Thanks Blade for pointing me in the right direction.