No start, IPR issue?

[dhanna6powerstroke]

I have an 03 6.0 I'm working on. Monitored everything withAE and the ICP wouldn't go above 400-420 psi while cranking and IPR was at 85%. Unplugged ICP and it jumped to 1900 psi but still no start. IPR would read 52%. I removed IPR valve to check but can't see any damage to screen. Could it still be bad or what else should I check?

[dannyboy950]

Check that you have 45 psi min fuel pressure and you have sync and good ficm voltages.

You oil system seems to be doing what it is supposed to do so you want to look for other causes.

[southend]

Unless i'm reading this wrong, you have a hpo leak, or a faulty ipr. You should probably perform the hpo leak test.

Sent from my phone that somebody didn't help me get.

[dhanna6powerstroke]

Fuel pressure is 55 and FICM is synced

[dannyboy950]

Man I gotta quit replying without enough sleep. Just reread your post. Southend is right you have a hpo leak run the air tests.

[dhanna6powerstroke]

I need to get an adapter so I can apply air to system.

[dhanna6powerstroke]

Is it normal to hear air coming from the oil filter stand pipe when air is applied to the hole under the HPOP?

[southend]

Are you applying air to the icp port? Air should not be coming out of the lpo area.

Sent from my phone that somebody didn't help me get.

[dannyboy950]

Did you apply power to the IPR to close it while running the test?

Air should be applied to the ICP port and the IPR commanded closed other wise you can get a false test.

[dhanna6powerstroke]

I have the cover completely off. Applied air to the top of the pump with cover removed. I now have pump removed and was gonna apply air directly to the branch tubes.