I'm frustrated - please help

[FuddleyPJones]

I just received my AE diagnostics equipment and was able to test the HPO system while cranking. It shot up to 1300 PSI so I think the HPO system is fine...BUT...

Where do I go from here?

While I was waiting on my diagnostics program... I replaced the Crankshaft Position Sensor because it was easy, I cleaned the EGR valve, and I removed the ICP and inspected it and ohm-tested it (804) and reinstalled it.

If I am getting good HPO pressure can I assume that the IPR is OK?

At this point I am pretty much lost...I dont know enough about AE program to know if it can test the FICM for me or if I need to do it with a meter...

From the threads I've read and the notes I've assembled I am wondering about the following:
FICM - Fuel Injection Control Module
ICP- Injection Control Pressure Sensor
IPR- Injector Pressure Relay. It is what controls the pressure from the HPOP to the injectors
PCM - Powertrain Control Module calculates the proper idle speed for conditions
IDM - Injector Driver Module – Amplifies the voltage for the injectors
Located in the fender behind F350 emblem. Remove fender liner to get to it.


I'm frustrated - please help.

[rollincoal6.4L]

Your high pressure oil pump is good if it builds 1300 psi and yes the IPR is good then also. My next check would be the FICM. If it is lower than 45 volts then it has failed and needs to be replaced. If you can retreive DTCs, a FICM should set all 8 injector circuit low codes and also a p0611.

[Evil Eye]

Look at FICM voltage while cranking the engine.

[FuddleyPJones]

My AE program shows the following codes for the powertrain:
Enhanced Powertrain CAN
P0113 Intake Air Temperature Circuit High Input
P0230 Fuel Pump Primary Circuit
P0261 Cylinder 1 Injector Circuit Low
P0264 Cylinder 2 Injector Circuit Low
P0267 Cylinder 3 Injector Circuit Low
P0270 Cylinder 4 Injector Circuit Low
P0272 Cylinder 4 Injector Circuit Contribution / Balance Fault
P0273 Cylinder 5 Injector Circuit Low
P0276 Cylinder 6 Injector Circuit Low
P0279 Cylinder 7 Injector Circuit Low
P0282 Cylinder 8 Injector Circuit Low
P0284 Cylinder 8 Injector Circuit Contribution / Balance Fault
P0403 Exhaust Gas Recirculation Circuit
P0404 Exhaust Gas Recirculation Circuit Range / Performance
P0562 System Voltage Low
P0611 Fuel Injector Control Module Performance
P0683 Glow Plug Control Module to PCM Communication Circuit
P1378 Fuel Injector Control Module System Voltage Low
P2269 Water in Fuel Condition
P2614 Camshaft Position Output Circuit / Open
P2617 Crankshaft Position Output Circuit / Open
P2623 Injector Control Pressure Regulator / Open

The 8 "Injector Circuit Low"s and the P0611 Fuel Injector Control Module Performance are pointing me towards the FICM. Also the real-time monitoring of the FICM voltages are of concern to me but I'm not sure how to interpret them or what is out of perameters..If someone can shed some light on this info. please let me know.

FICM MAIN POWER - KOEO - 47 VOLTS
FICM MAIN POWER - CRANKING - 40 VOLTS
FICM VEHICLE POWER - KOEO - FOLLOWS BATT VOLTAGES
FICM INFO FOR SYNC - KOEO - 0 VOLTS
FICM INFO FOR SYNC - CRANKING - 1 VOLT - YES 1 (IT WAS ALSO RED ON THE PROGRAM)

I also did a KOEO Injector Buzz Test but DIDNT HERE ANY BUZZING and got the same 8 codes "Injector Circuit Low"s.

[diablos30]

you shouldnt drop below 48v at any time. are your batteries fully charged? if so then yank out the ficm and either re-solder according to the tech article or send it out to swamps.

[Evil Eye]

The SYNC is a logic code, so you will only see a 1 or a 0. Just because they are red doesn't mean that they are bad. FICM main is well below 48 volts and accompanied with the 8 Injector Circuit Low codes, your FICM is definitely bad. Like was mentioned get it replaced or repaired. Once that is done, pull codes once again because it sounds like you have other issues (2 injectors and a wiring issue)... Keep us posted.

[FuddleyPJones]

Originally Posted by Evil Eye

The SYNC is a logic code, so you will only see a 1 or a 0. Just because they are red doesn't mean that they are bad. FICM main is well below 48 volts and accompanied with the 8 Injector Circuit Low codes, your FICM is definitely bad. Like was mentioned get it replaced or repaired. Once that is done, pull codes once again because it sounds like you have other issues (2 injectors and a wiring issue)... Keep us posted.

Gonna call AE today to find out why 1 v is red...
I am reading that it is normal for voltage drop during glow plug activation but I'm not sure about cranking...the batt voltage was low 12v high 11 v during testing didn't hear any difference in cranking...

Are you supposed to hear the injectors buzz during the injector test?? 'Cuz i didn't hear squat...

I've been reading up on the FICM repair - seems easy enough...The 58V upgrade seems harder...not sure if it is worth it. If the capacitors are only rated to 50v then go to 50v and avoid the other part replacements...eh?

[Evil Eye]

Originally Posted by FuddleyPJones

Gonna call AE today to find out why 1 v is red...
I am reading that it is normal for voltage drop during glow plug activation but I'm not sure about cranking...the batt voltage was low 12v high 11 v during testing didn't hear any difference in cranking...
The FICM voltage shouldn't drop at all. The battery voltage might drop a bit due to the high current draw of the glow plugs, like you mention.
Are you supposed to hear the injectors buzz during the injector test?? 'Cuz i didn't hear squat...
Yes, but that is likely because the FICM isn't working to send a signal to the injector.
I've been reading up on the FICM repair - seems easy enough...The 58V upgrade seems harder...not sure if it is worth it. If the capacitors are only rated to 50v then go to 50v and avoid the other part replacements...eh?Correct. To go to the 58V, you would need to upgrade all the power supply components to support 58V.

Please see my comments in red.

[FuddleyPJones]

I disassembled the FICM and can see the components but I really dont see anything obvious that is wrong with the boards...no fried componants, no cracked boards, no evidence of moisture...
Can it really be as simple as touching up a few solder joints?

[Evil Eye]

Yes, unfortunately.