Hey guys, my 95 is still being a basket case and getting worse. 95 F-350 cc 2wd Powerstroke auto with 323k on the clock. Last month went to running like crap after getting hot. Was showing a P1211 code. I changed the IPR, and ICP and truck ran like it should for a day. It is now showing a P0340, P0476, and P1211.

Now when attempting to start it will spin and start for maybe a second then die. It will start and run if the accelerator is held down and if I left the RPMs come down slow it will idle. Will run for about 30 seconds before the check engine light comes on and looses all power and will not idle with out the accelerator held down.

HPOP problem?

Any help would be greatly appreciated!!

 

Some reading for you from the manual :


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.




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476 is exhaust pressure sensor ,, 340 is most likely from extended cranking...

Can you do a buzz test to rule out UVCH problems ?..