Loss of power on 1998 ford powerstroke 7.3 . pcm threw a p1211 code went to ford and got new icp. already replaced ipr. the hpop is full of oil. it idles all day and can hold 3000 rpms just fine but when you drive it down the road the check engine light comes on and the power is cut in half.cut the truck off and crank it right back up the light is off and truck runs fine.

The icp sensor connector is a weak link in this mess. Check and make sure that it is not broken or has loose wires or wires that are broken inside the insulation.

P1211 lack of power on Ford 7 3 powerstroke diesel Due to oil

P1211 Injector Control Pressure Sensor Above / Below Desired P1249 Wastegate Control Valve Performance
P1211 We all know that this code is commonly caused by "Hot Chips" that are demanding more Injection Control Pressure (ICP) than the High Pressure Oil Pump can deliver. For what it's worth, these are the exact parameters that trigger this code:

• ICP 410psi Higher Than Desired for 7 Seconds
• ICP 280psi Lower Than Desired for 7 Seconds

This code can also be caused by legitimate High Pressure Oil System issues. Below is a list of some of the causes:

• Failed or Sticking IPR (Injection Pressure Regulator)
• Failed or Weak HPOP (High Pressure Oil Pump)
• Any Leak in High Pressure Oil System (o-ring, stuck injector, etc.)
• Low Fuel Pressure (Rare)

P1249 it is the HPOP, above or below pressure, if you have added a performance chip to your vehicle , you will get this code from time to time, basically its Turbo over boost

it sounds like to that it is either worn/ old injectors,dirtly HPOP (high pressure oil pump) oil worn HPOP pump or dirty fuel filters or fuel. you can take truck to a qualified diesel shop and they can do a buzz test on your injectors and see if they need to be replaced with a buzz test the tester will buzz all eight injectors with engine off and you can hear the buzz of the injectors then it will go through and buzz each injectors individually in firing order to der determin witch ones are bad. the bad injectors will be alot quieter than the other and most testing equipent will show what they are running at. hope this helps.

replace the hpop(high pressuse oil pump) i had the same problem with mine, i replaced the fuel pump and ipr sensor and it wasnt it so i replaced the hpop and now it runs

Code p1280 is a low or high fuel pressure code. To check that,you need to first check the icp sensor connector drivers side cylinder head front. The sensor is located between the valve cover and the block. Try wiggling the connector while the truck is running to see if there is a change in the running of the engine such as stumbling.

Code p1211 means the ICP pressure is above or below specs meaing there is a high pressure oil concern. You need to monitor the ICP with a scan tool and see which it is. If its high then its most likely a faulty IPR valve. If its low then its most likely a internal leak at the pump or stand pipes.

Code p1139 is for a Water in Fuel Indicator Circuit Malfunction. I would check the wiring on this sensor, and if no issues come from wiring, replace this indicator sensor.

Hi,

For P1211 :-

This code means the ICP pressure is aove or below specs meaing there is a high pressure oil concern. You need to monitor the ICP with a scan tool and see which it is. If its high then its most likely a faulty IPR valve. If its low then its most likely a internal leak at the pump or stand pipes.

For P0603 :-

The code P0603 is in ost case set due to the performance chip.
If equipped, remove and recheck operation.

If the vehicle is not equipped with a chip, or removing it makes no difference, monitor the voltage on fuse #22 in the interior fuse panel to see if the battery voltage goes away when the problem occurs.

If the voltage on fuse #22 is dropping or going away, check for a loose terminal connection on the PCM power relay. Also try swapping the PCM power relay with a similar part to eliminate a faulty relay.

If the relay is OK, but the voltage on fuse 22 is dropping, suspect an internal problem with the interior fuse panel.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

you need to replace icp its in the back under the turbo its a little sensor fairly cheap and a pain in the but to get to good luck

P1212 -ICP voltage not at expected level

P01238 is not a code, too many numbers, if it is p1283 then it is an IPR circuit failure.

The IPR is probably your problem, even with a non working backpressure sensor your truck should run fine. I isn't needed except for the EBPV to operate during warm-ups.

Replace your IPR (injection pressure regulator)

Loss of power, usually after a hard acceleration; Rough idle; Check engine light comes on, DTC P1211:
Intermittent high pressure oil leakage.
This condition usually occurs when the vehicle is cold and the oil is thick. When performing a hard acceleration, the truck suddenly looses power, the check engine light comes on, and once returning to idle the engine runs rough and won't accelerate. Cycling the key may correct the concern, clearing the code from the PCM will correct it temporarily. If you can monitor data stream, at idle the ICP pressure normally is 400-700 PSI and the IPR duty cycle is 9-14%; at cruise, ICP is 700-1200 pSI and IPR is 15-20%; under normal acceleration, ICP is 1200-2000 PSI and IPR is 20-30%; and under WOT accel, the ICP is up to 3600 PSI and the IPR is 35% or higher. When the above symptom occurs, typically the idle ICP reading will be normal, but the IPR duty cycle will be high--over 20% and up to the max 50%. A "blow-by" condition has occured somewhere in the HP oil circuit. If you can get the problem to re-occur with some frequency, the most probable cause is worn or deteriorated injector or IPR o-rings. If the problem is intermittent, it could be a sticking IPR valve. Replace the injector o-rings with the latest-level kits--F8TZ-9229-AA. When replacing the IPR, make sure you get the correct part for the build date/serial number of your engine.