What Should Icp Pressure Reading on 2004 Ford 6.0
six.0L Ability Stroke ICP Sensor Replacement
2003 - 2007 6.0L Power Stroke ICP Sensor Replacement Procedures
Applicable Models:
2003 - 2007 Ford F-250, F-350, F-450, F-550 Super Duty
2003 - 2006 Ford Circuit
Applicable Engine(south):
half dozen.0L Power Stroke diesel (early & late style engines)
ICP Sensor Part Number:
See part number chart below for ICP sensor & connector function numbers
The following procedures cover 2003 - early 2004 engines with the ICP sensor located behind the turbocharger and 2004 - 2007 engines with the ICP sensor located on the passenger side valve cover.
6.0L Ability Stroke ICP Sensor Parts List
| Office Description | Part Number(s) | Remarks/Notes |
| ICP sensor, 2003 - early 2004 | Ford 3C3Z-9F838-EA | [ane] |
| ICP sensor, late 2004+ | Ford 4C3Z-9F838-A | [2] |
| ICP sensor connector pigtail | Ford 5C3Z-12224-A | [3] |
| IRP valve service kit | Ford 3C3Z-9H529-A | [4] |
[one] All 2003 and early build 2004 models with ICP located below the turbocharger through the HPOP embrace.
[ii] Belatedly 2004 and up models with ICP located through the passenger side valve comprehend.
[3] Faulty connectors tin emulate the symtoms of a bad ICP sensor; for good mensurate, we always recommend replacing the connector when replacing the ICP sensor.
[iv] Only necessary if IPR valve is found to be leaking and requires service (the IPR valve is located adjacent to the ICP sensor on 2003 and early on 2004 models)
vi.0L Power Stroke ICP Sensor Function, Diagnostics, & Troubleshooting
The ICP (injector command pressure level) sensor measures the bodily pressure in the high pressure oil circuit. Recollect that the 6.0L Power Stroke utilizes an HEUI (hydraulic electric unit injector) system in which pressurized engine oil is used to create the final fuel injection force per unit area in lieu of a high pressure fuel/injection pump. The oil force per unit area in the high force per unit area excursion can exceed 3,000 psi, creating a fuel injection pressure of up to 26,000 psi.
The ICP sensor reading is used, amongst other things, to control the position of the IPR valve, which regulates the pressure level of engine oil in the high pressure organization. As the system's watchdog, ICP is monitored and compared to a desired value for a particular gear up or combination of operating parameters (engine load, speed, etc). The IPR valve is than commanded open/airtight as necessary to chase the desired ICP value.
On 2003 and early 2004 model year 6.0L Power Stroke engines, the ICP sensor is located behind the turbocharger and below the turbocharger upwards-pipe collector (turbine inlet), fastened through the high pressure level oil pump (HPOP) cover next to the IPR valve. Starting mid-year in 2004, the ICP sensor was moved to the passenger side valve cover near the glow plug controller. Replacing the ICP sensor is therefore somewhat labor intensive on the early engines, and very elementary for 2004 to 2007 model years. ICP sensor problems are as well more than common on early engines as the sensor and its connector go broiled by the turbocharger and up-pipe collector.
ICP Sensor Diagnostics & DTCs
Symptoms of a faulty or failed ICP sensor typically include:
• Intermittent engine stutter and/or crude idle
• Hard start, long crank status
• No beginning condition
• Engine stalling
• Overall reduced operation
Diagnosing an ICP sensor is non terribly difficult with the correct tools, but information technology is of import to think that the ICP sensor is just ane part of a complex system; just because an ICP reading is depression, high, or abnormal, does not necessarily mean that the ICP sensor is the problem. An IPR valve fault, weak HPOP, or even severe internal leak in the high force per unit area oil circuit can likewise cause an aberrant or depression pressure level condition, setting a DTC relating to injection command pressure.
With an appropriate scantool (even some aftermarket tuners/programmers feature this functionality), monitor the injection control pressure, injection command pressure desired, and injection pressure regulator duty wheel PIDs. Compare with the following values:
| PID | Value, Engine Cranking | Value, Engine Idling | Notes |
| ICP | minimum 500 psi | 600 - 800 psi | Typically between 800 and ii,000 psi earlier engine starts. |
| ICP desired | --- | --- | Value should exist reasonably shut to actual ICP with engine running. |
| IPR duty cycle | upward to 84% | ~ 30% | IPR duty bicycle should get-go at fifteen% with the central "ON" and engine "OFF". |
Unplugging the ICP sensor defaults the reading to 750 psi. In the event of a no beginning, hard start, or crude running status, attempt to outset the engine with the ICP sensor unplugged. If the engine starts commonly and runs smoothly, replace the ICP sensor and ICP sensor pigtail. If unplugging the ICP sensor does nothing, further diagnostics are required to find the actual problem. The following DTCs are related to the ICP sensor, but the ICP sensor itself does non have to experience a mistake for most of them to be gear up:
| DTC | Description | Notes |
| P2284 | ICP sensor range/performance | An abnormal reading was detected exterior of the normal range of the sensor (Mutual) |
| P2285 | ICP sensor circuit depression | Oil pressure in the high force per unit area excursion was found to be relatively depression for a given prepare of operating parameters (VERY COMMON) |
| P2286 | ICP sensor excursion loftier | Oil pressure in the loftier pressure circuit was found to be relatively high for a given set of operating parameters (LESS Mutual) |
| P2287 | ICP sensor circuit intermittent | Check ICP sensor connector/circuit for chaffing; sensor point is intermittently lost/interrupted (VERY COMMON) |
| P2288 | ICP also high | Oil pressure in the high pressure level circuit was constitute to be excessively high (LESS COMMON) |
| P2289 | ICP too high w/ engine off | Oil pressure in the loftier pressure circuit was plant to be excessively high with the key on, engine off (LESS Mutual) |
| P2290 | ICP too low | Oil force per unit area in the high pressure excursion was plant to be excessively depression (LESS COMMON) |
| P2291 | ICP too low, engine cranking | Oil force per unit area in the high force per unit area circuit was institute to exist excessively low while cranking engine (Mutual) |
Keep in mind ICP sensor DTCs are set if at whatever moment there is an abnormality. If an engine runs flawlessly only a DTC is set, clear the code and encounter if it returns. It is not uncommon for an occasional fluke condition to ready a DTC, but if the DTC is continuously set up the problem should be addressed.
How to Replace the ICP Sensor on a 2003 - Early on 2004 6.0L Power Stroke
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• Disconnect both negative bombardment cables.
• Drain approximately three gallons of engine coolant from the radiator into clean containers so that it can be reused. The drain valve is located on the bottom of the radiator on the driver side.
• Disconnect the (2) coolant lines attaching at the top of the degas tank and the (1) large coolant hose attaching at the bottom.
• Remove the (ii) bolts securing the degas tank with an 8 mm socket, then remove the tank and set aside.
• Remove the intake tubing from the turbocharger inlet to the air filter.
• Remove the FICM and FICM mounting bracket (if necessary, see half-dozen.0L Power Stroke FICM removal for specific instructions).
• Remove the ground from the rearmost intake manifold stud on the driver side (small o-band terminal).
• Remove each fuel injector connector on the driver side banking concern (push metal prune into connector and then pull up, or remove the metallic prune altogether and pull up).
• Accomplish under the turbocharger up-pipe collector and unplug the IPR valve and ICP sensor connectors.
• Pull the entire commuter side electrical harness toward the front of the engine out of the fashion. There may be several locations where the connector attaches to the valve cover using small snap clips.
• Remove the rearmost intake manifold commodities with a 10 mm deep socket (where ground terminal was previously connected). This volition make it significantly easier to reach the ICP sensor.
• Locate the ICP sensor beneath the turbocharger upwardly-pipe collector.
• Remove the ICP sensor with a 27 mm deep socket.
Note - access is limited; you may wish to remove the IPR valve to make room to reach the ICP sensor. If the IPR is removed, use service kit Ford 3C3Z-9H529-A to supersede the IPR valve o-rings and mesh screen before reinstalling.
• Lubricate the o-ring on the new ICP sensor with clean engine oil. Install the ICP sensor in reverse social club. Torque sensor to 106 in-lbs.
• See ICP sensor connector replacement beneath; we highly recommend replacing the connector when the sensor is replaced.
• If removed, torque IPR valve to 37 ft-lbs and rear intake manifold to 96 in-lbs.
How to Replace the ICP Sensor on a 2004 - 2007 six.0L Power Stroke
• Disconnect both negative bombardment cables.
• Locate the ICP sensor on the passenger side valve encompass just above the glow plug controller connectors.
• Disconnect the hot side intercooler tube from the turbocharger compressor outlet and position it out of the way so that the ICP sensor can be readily accessed.
• Disconnect the ICP sensor connector.
• Inspect the status of the ICP sensor connector. If connector condition is acceptable, clean it with an appropriate connector cleaner (recommend CRC QD electronic cleaner). Do not attempt to clean the sensor with a harsh solvent such as brake cleaner, equally it will impairment the connector shell and seal. If the connector is damaged, the terminals are loose, or information technology is otherwise degrading from oil/estrus exposure, a new connector pigtail should be spliced in place; see instructions in section below.
• Remove the ICP sensor with a 27 mm deep socket.
• Lubricate the o-ring on the replacement ICP sensor with clean engine oil.
• Install new ICP sensor; torque to 108 in lbs.
• Reinstall ICP sensor connector, intercooler tube, and negative battery cables.
vi.0L Ability Stroke ICP Sensor Connector Replacement
Replacing the ICP connector is virtually ever recommended on 2003 and early 2004 6.0L Ability Strokes when the ICP sensor is replaced because the harness tends to get baked past the turbocharger and upwards-piping collector, both of which generate a tremendous corporeality of heat. This, combined with the oil that often soaks the connector when an ICP sensor leaks, rapidly degrades the connector and compromises its integrity. Connector failures are less common on 2004 to 2007 model yr engines where the sensor is located through the passenger side valve cover. However, the connector should ever exist inspected and replaced as necessary. Information technology is non uncommon for ICP faults to be acquired by a bad connector and non the sensor itself. The connector pigtail and splice kit is Ford p/n 5C3Z-12224-A.
• Begin past removing the factory wire loom and insulating sleeve(due south) to betrayal the wires. Any damaged wire loom should be removed from the harness and replaced as necessary.
• The replacement pigtail wires are non color coded to the manufactory wiring harness. Therefore, yous will demand to mark/number the wires prior to splicing so that they can be matched accordingly. Here, nosotros've numbered the wires on either side of the splice before cutting.
Annotation - do non trim the factory harness more than necessary; use pigtail length as a guide. Since this connector is oftentimes replaced more than once, y'all may wish to trim the pigtail and cutting less out of the wiring harness.
• Using the features of the old connector (it is a three wire not-symmetrical connector), lucifer the advisable wires on the replacement pigtails with the numbered harness wires.
• Slide heat compress tubing over the pigtail leads, so crimp the new connector to the harness. Double and triple check that the wires are being crimped correctly.
• Slide the heat compress tubing over the butt splices and actuate with a estrus gun to create a secure connection.
• Replace the wire loom, sleeving, and heat shielding equally necessary.
• Here, we've covered the ICP sensor and IPR valve connector wires with fiberglass insulation followed past a radiant heat shield. The radiant heat shield was left long so that it could be slid over the connectors themselves after installation.
• Reinstall the ICP sensor and IPR valve connectors and ensure the harness is not touching the turbocharger up-pipe connector.
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Source: https://www.dieselhub.com/maintenance/6.0-powerstroke-icp-sensor.html
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