IPR HELP!!
X7 KOER ON-DEMAND DIAGNOSTIC TROUBLE CODE (DTC) P1211
DTC P1211 indicates that injection control pressure was above or below commanded desired pressure during self test mode.
Possible causes:
incorrect oil or viscosity
poor oil quality
gel fuel/no fuel
low fuel pressure
damaged IPR valve
high-pressure oil system leak
damaged high-pressure oil pump
damaged PCM
Verify correct oil quality/viscosity and correct fuel grade are being used for the temperature conditions.
Is oil and fuel quality OK?
Yes No
GO to X8 . SERVICE fuel or oil condition and VERIFY DTC does not return.
X8 CHECK FUEL PRESSURE
Measure fuel pressure at regulator block.
Measure fuel pressure at idle and on road at WOT at full load. Fuel pressure at idle should be 138 kPa (20 psi) minimum, and 206-482 kPa (30-70 psi) at WOT full load.
Is fuel pressure OK?
Yes No
GO to X9 . SERVICE fuel system concern. CLEAR DTC and RETEST.
X9 CHECK OIL RESERVOIR LEVEL
Remove plug in top of oil reservoir and check level.
Is oil level within 25.4 mm (1 inch) of the top of the reservoir?
Yes No
GO to X10 . REPAIR condition causing low oil supply to the reservoir. RETEST system.
X10 ICP SENSOR CHECK
NGS Tester installed.
Key on.
Monitor ICP PID on the NGS Tester.
Is ICP reading 0 kPa (0 psi)?
Yes No
GO to X11 . REPLACE faulty ICP sensor. RETEST system.
X11 OIL AERATION CHECK
NGS Tester installed.
Monitor ICP PID.
Accelerate engine to wide-open throttle and hold for three minutes.
Does ICP reading increase above 8618 kPa (1250 psi)?
Yes No
CHANGE engine oil and REPEAT test. GO to X12 .
X12 CHECK ICP WHILE PERFORMING SELF TEST
Note: During KOER On-Demand Self Test, ICP will be commanded high (17 mpa), then low (5 mpa) and then EBP will be commanded high and low.
Install ICP/EBP Adapter Cable D94T-50-A or equivalent between ICP sensor and engine harness.
Measure the voltage between ICP signal circuit and ground.
Perform KOER On-Demand Self Test.
Does voltage reading increase above 3v and then decrease to approximately 1v during the ICP portion of the KOER test?
Yes No
If DTC 1211 was displayed, REPLACE the PCM. RETEST system. GO to X13 .
X13 INJECTOR LEAK TEST
Disconnect high pressure hose from right cylinder head.
Using Oil High Pressure Leakage Adapter Set D94T-6600-A or equivalent, plug right high pressure hose.
Monitor IPR PID on NGS Tester.
Start vehicle and record IPR reading on NGS Tester.
Engine off.
Reconnect right cylinder head high pressure hose.
Disconnect left cylinder head high pressure hose. Install adapter and ICP into high pressure hose.
Start vehicle and record IPR reading on NGS Tester.
Are the two readings within 2% of each other?
Yes No
REPLACE faulty IPR valve. RETEST system. If DTC 1211 is still present, GO to X14 . REPAIR internal oil leak on the bank with the higher IPR reading. REFER to the Powertrain/Engine Group in the Service Manual.
X14 OIL SYSTEM PRESSURE TEST
Go to the Powertrain/Engine Group in the Service Manual. Perform pressurized oil leak checks.
Is a leak condition indicated?
Yes No
REPAIR leak as necessary. REPLACE high pressure oil pump.
X15 CONTINUOUS DIAGNOSTIC TROUBLE CODE (DTC) P1211, P1209
DTC P1209 and P1211 indicates that injection control pressure was above or below desired level under normal driving conditions.
Possible causes:
incorrect oil or viscosity
poor oil quality
gel fuel/no fuel
low fuel pressure
damaged IPR valve
high-pressure oil system leak
damaged high-pressure oil pump
damaged PCM
Verify correct oil quality/viscosity and correct fuel grade are being used for the temperature conditions.
Is oil and fuel quality OK?
Yes No
GO to X16 . SERVICE fuel or oil condition. CLEAR DTC and RETEST.
X16 RECHECK FUEL PRESSURE
Measure fuel pressure at regulator block.
Measure fuel pressure at idle and on road at WOT full load. Fuel pressure at idle should be 138 kPa (20 psi) minimum, and 206-482 kPa (30-70 psi) at WOT full load.
Is fuel pressure OK?
Yes No
GO to X17 . SERVICE fuel system concern. CLEAR DTC and RETEST.
X17 PERFORM KOER ON-DEMAND SELF TEST
Perform KOER On-Demand Self Test.
Is DTC P1211 set?
Yes No
GO to X9 . GO to X18 .
X18 CHECK OIL LEVEL IN RESERVOIR
Note: If may be necessary to soak vehicle if a leakdown concern is indicated.
Remove plug from top of oil reservoir and check level.
Is oil level within 25.4 mm (1 inch) of the top of the reservoir?
Yes No
GO to X19 . REPAIR condition causing low oil supply to the reservoir. RETEST system.
X19 CHECK ICP SENSOR
NGS Tester installed.
Key on.
Monitor ICP PID on NGS Tester.
Is injection control pressure reading 0 kPa (0 psi)?
Yes No
GO to X20 . REPLACE faulty ICP sensor. RETEST system.
X20 CHECK OIL AERATION
NGS Tester installed.
Monitor ICP PID.
Accelerate engine and hold at 3300 rpm for three minutes.
Does injection control pressure reading increase above 8618 kPa (1250 psi)?
Yes No
CHANGE engine oil. RETEST system. GO to X21 .
X21 CHECK IPR DUTY CYCLE UNDER LOAD
NGS scan tool installed.
Monitor ICP and IPR PIDs.
Run vehicle at WOT and full load condition.
Does IPR duty increase to 65%?
Yes No
REPLACE IPR valve. CLEAR DTC and RETEST. Unable to duplicate failure.
Thanks for all the replys, ok a little history on my truck. 95 F-350 CC 2wd Automatic. Truck is not chipped with 322k on the clock. Almost 3k on this oil change. I'm running Rotella 15w 40 no additives. Truck was running fine until a few weeks ago I was helping a friend with his delivery business and I pulled a trailer that was probally a little heavy for it most of the day. Truck got hotter than I have ever seen it but according to the gauge never over heated. Parked it that after noon after running all day and a hour later it would not start. Would turn over fine, just not start. Gave it just a wiff of starting fluid, and yes i know it does terriable things but it started and ran fine. Then for the next week it would start after sitting all night and run fine, but after i shut it off when i was warmed up, would not start without the aid of the fluid. After a week of this I was pulling onto my street, got a CEL on and the truck died. There it sat until the next morning. Hooked up the scanner and it was showing the P1211. I pulled the old IPR out, and it had bad orings, and my self attempt to taking it apart for service went to hell in a hand basket. Bought a new IPR from Ford, Intalled it and the truck started and ran like it should for a day. Then the next morning, I got the CEL back on with the P1211 code. I went back in, checked the connection to the solinoid, and retighned the sheet metal nut. Started up fine and ran fine for around 30 min, then CEL is back on showing the P1211. this is where i'm at. And I'm sorry for the spelling and gramer, this is from my cell phone at work
Trace the wiring back to near the vally and look for a bad area. I have read that the wires can go bad somewhere in that area and create issues.
Check the fuel pressure under the fpr while cranking. Unplug the icp and allow the pcm to set default running conditions and see what happens. If you have intermitant tach movement then check the cps wiring connection and you may want to change the cps. They have been known to be bad and give intermitant signals.
Check your fuel filter and and the small filter screen located at the very top right hand side of the fuel bowl for fouling. Look in the bottom of the bowl under the heater coil rack for filth and hard particals. If there is a lot of particals then remove fuel strainer plastic down pipe use bent 7/8" wrench to get to nut. Becarefull the riser can brake off reverse thread. Fuse 22 should be good under the hood. If not diconnect fuel bowl heater and replace fuse. Leave the drain valve open and clean the inside of the fuel bowl out with brake cleaner and rags. Refill bowl halfway with diesel and a little transmission fluid. Insert new filter and if the level get too high, open and drain a little out. I have a hose attached to the tubing from the drain valve and keep it tye wrapped to the wheel yoke where the fuel lines are. To put a hose on the fuel drain line, & locate the end of the tubing trace the right battery cable down to the first strap guide then go under the truck and reach behind the strap guide and there is the end of the tubing. push hose on with some pliers and secure with small worm gear clamp.
Let us know what you find today.
You may want to pull the valve covers & watch for oil bubbling up from the base of an injector when the oil gets warm...Look at the spill spouts while you are there , they should all be spilling oil evenly..
Ford Trucks for Ford Truck Enthusiasts
oil to the hpop is supplied by the low pressure oil pump. it uses the same engine oil circulating to everything else so adding it directly to the hpop wont really do much.
you could try it and if it runs fine for a few seconds and the truck dies again and your hopo is low then you may have a bad low pressure oil pump that cant keep up but my guess with the hot no start its injector o-rings
UVCWH is toasted when you got it hot. Inspect the two connects on each valve cover for evidence of being fried. Look hard at it.
What is the fuel pressure under the fpr use the shrader valve and test it.
You dont have to get the exact pressure so use a cheap a$$ tire gauge.






