What is icp sensor

What is icp sensor DEFAULT

Sinister Diesel Injection Control Pressure Sensor (ICP) for 1994-2003 Ford Powerstroke 7.3L

The ICP (Injection Control Pressure) Sensor is responsible for controlling the IPR (Injector Pressure Regulator) Valve in the Ford 7.3 Powerstroke. A faulty ICP Sensor can cause all kinds of problems. Poor idle, stalling, surging, or not even allowing the engine to start at all. Get your 7.3 Powerstroke running right again with a Sinister Diesel Injection Control Pressure Sensor. They are manufactured to meet or exceed OEM standards for long lasting reliability and so you can get things fixed right the first time. 

Note: Located Under the Turbocharger

Features:

  • Restores poor driveability that comes with a faulty ICP Sensor
  • Manufactured to Meet or Exceed OEM Standards for reliable operation and a perfect fit
  • Comes with 12 Month/Unlimited Mile Warranty

Includes:

  • (1) Sinister Diesel Injection Control Pressure Sensor
Sours: https://sinisterdiesel.com/i-24075623-sinister-diesel-injection-control-pressure-sensor-icp-for-1994-2003-ford-powerstroke-7-3l.html

6.0L Power Stroke ICP Sensor Replacement

6.0L Power Stroke ICP Sensor Parts List

[1] All 2003 and early build 2004 models with ICP located beneath the turbocharger through the HPOP cover.
[2] Late 2004 and up models with ICP located through the passenger side valve cover.
[3] Faulty connectors can emulate the symtoms of a bad ICP sensor; for good measure, we always recommend replacing the connector when replacing the ICP sensor.
[4] Only necessary if IPR valve is found to be leaking and requires service (the IPR valve is located next to the ICP sensor on 2003 and early 2004 models)

6.0L Power Stroke ICP Sensor Function, Diagnostics, & Troubleshooting

The ICP (injector control pressure) sensor measures the actual pressure in the high pressure oil circuit. Recall 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 pressure in lieu of a high pressure fuel/injection pump. The oil pressure in the high pressure circuit 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 of engine oil in the high pressure system. As the system's watchdog, ICP is monitored and compared to a desired value for a particular set or combination of operating parameters (engine load, speed, etc). The IPR valve is than commanded open/closed 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 beneath the turbocharger up-pipe collector (turbine inlet), fastened through the high pressure 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 simple for 2004 to 2007 model years. ICP sensor problems are also more common on early engines as the sensor and its connector get baked 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 rough idle
• Hard start, long crank condition
• No start condition
• Engine stalling
• Overall reduced performance

Diagnosing an ICP sensor is not terribly difficult with the correct tools, but it is important to recall that the ICP sensor is just one part of a complex system; just because an ICP reading is low, 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 pressure oil circuit can also cause an abnormal or low pressure condition, setting a DTC relating to injection control pressure.

With an appropriate scantool (even some aftermarket tuners/programmers feature this functionality), monitor the injection control pressure, injection control pressure desired, and injection pressure regulator duty cycle 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 2,000 psi before engine starts.
Normal ICP at idle is 600 to 800 psi.
Injectors will NOT fire if ICP reading is below 500 psi.

ICP desired

---

---

Value should be reasonably close to actual ICP with engine running.
ICP may trail ICP desired while engine is cranking until engine starts.

IPR duty cycle

up to 84%

~ 30%

IPR duty cycle should start at 15% with the key "ON" and engine "OFF".
While cranking, IPR duty cycle should rapidly increase to near peak (84%) until engine starts or ~ 2,000 psi ICP is achieved.
If IPR duty cycle is significantly greater than 30% at idle, there is likely a leak in the high pressure oil system (typically causes a long crank condition).
The minimum IPR duty cycle is 15% (fully open); the maximum duty cycle is 85% (fully closed).

Unplugging the ICP sensor defaults the reading to 750 psi. In the event of a no start, hard start, or rough running condition, attempt to start the engine with the ICP sensor unplugged. If the engine starts normally 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 not have to experience a fault for most of them to be set:

DTC

Description

Notes

P2284

ICP sensor range/performance

An abnormal reading was detected outside of the normal range of the sensor (COMMON)

P2285

ICP sensor circuit low

Oil pressure in the high pressure circuit was found to be relatively low for a given set of operating parameters (VERY COMMON)

P2286

ICP sensor circuit high

Oil pressure in the high pressure circuit was found to be relatively high for a given set of operating parameters (LESS COMMON)

P2287

ICP sensor circuit intermittent

Check ICP sensor connector/circuit for chaffing; sensor signal is intermittently lost/interrupted (VERY COMMON)

P2288

ICP too high

Oil pressure in the high pressure circuit was found to be excessively high (LESS COMMON)

P2289

ICP too high w/ engine off

Oil pressure in the high pressure circuit was found to be excessively high with the key on, engine off (LESS COMMON)

P2290

ICP too low

Oil pressure in the high pressure circuit was found to be excessively low (LESS COMMON)

P2291

ICP too low, engine cranking

Oil pressure in the high pressure circuit was found to be excessively low while cranking engine (COMMON)

Keep in mind ICP sensor DTCs are set if at any moment there is an abnormality. If an engine runs flawlessly but a DTC is set, clear the code and see if it returns. It is not uncommon for an occasional fluke condition to set a DTC, but if the DTC is continuously set the problem should be addressed.

How to Replace the ICP Sensor on a 2003 - Early 2004 6.0L Power Stroke

Click any thumbnail to view fullsize, detailed image

Degas tank

• Disconnect both negative battery cables.

• Drain approximately 3 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.

FICM being removed

• Remove the (2) 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 6.0L Power Stroke FICM removal for specific instructions).

Disconnecting injector wiring harness

• Remove the ground from the rearmost intake manifold stud on the driver side (small o-ring terminal).

• Remove each fuel injector connector on the driver side bank (push metal clip into connector then pull up, or remove the metal clip altogether and pull up).

ICP and IPR valve connectors

• Reach under the turbocharger up-pipe collector and unplug the IPR valve and ICP sensor connectors.

• Pull the entire driver side electrical harness toward the front of the engine out of the way. There may be several locations where the connector attaches to the valve cover using small snap clips.

Removing intake manifold stud

• Remove the rearmost intake manifold bolt with a 10 mm deep socket (where ground terminal was previously connected). This will make it significantly easier to reach the ICP sensor.

ICP sensor location on 2003 and 2004 6.0L Power Stroke

• Locate the ICP sensor below the turbocharger up-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 replace the IPR valve o-rings and mesh screen before reinstalling.

6.0L Power Stroke ICP sensor

• Lubricate the o-ring on the new ICP sensor with clean engine oil. Install the ICP sensor in reverse order. Torque sensor to 106 in-lbs.

See ICP sensor connector replacement below; 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 6.0L Power Stroke

ICP sensor location on 2004 to 2007 model year 6.0L Power Stroke

• Disconnect both negative battery cables.

• Locate the ICP sensor on the passenger side valve cover just above the glow plug controller connectors.

Intercooler tube repositioned

• 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.

ICP sensor in valve cover

• Disconnect the ICP sensor connector.

ICP sensor connector removed for inspection

• Inspect the condition 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, as it will damage the connector shell and seal. If the connector is damaged, the terminals are loose, or it is otherwise degrading from oil/heat exposure, a new connector pigtail should be spliced in place; see instructions in section below.

ICP sensor removal

• Remove the ICP sensor with a 27 mm deep socket.

Lubricating o-ring on new ICP sensor

• Lubricate the o-ring on the replacement ICP sensor with clean engine oil.

new ICP sensor installed

• Install new ICP sensor; torque to 108 in lbs.

• Reinstall ICP sensor connector, intercooler tube, and negative battery cables.

6.0L Power Stroke ICP Sensor Connector Replacement

Replacing the ICP connector is almost always recommended on 2003 and early 2004 6.0L Power Strokes when the ICP sensor is replaced because the harness tends to get baked by the turbocharger and up-pipe collector, both of which generate a tremendous amount 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 year engines where the sensor is located through the passenger side valve cover. However, the connector should always be inspected and replaced as necessary. It is not uncommon for ICP faults to be caused by a bad connector and not the sensor itself. The connector pigtail and splice kit is Ford p/n 5C3Z-12224-A.

ICP sensor connector and wiring harness

• Begin by removing the factory wire loom and insulating sleeve(s) to expose the wires. Any damaged wire loom should be removed from the harness and replaced as necessary.

Old connector removed

• The replacement pigtail wires are not color coded to the factory wiring harness. Therefore, you will need to mark/number the wires prior to splicing so that they can be matched accordingly. Here, we've numbered the wires on either side of the splice before cutting.

Note - do not trim the factory harness more than necessary; use pigtail length as a guide. Since this connector is often replaced more than once, you may wish to trim the pigtail and cut less out of the wiring harness.

New connector crimped in place

• Using the features of the old connector (it is a 3 wire non-symmetrical connector), match the appropriate wires on the replacement pigtails with the numbered harness wires.

• Slide heat shrink tubing over the pigtail leads, then crimp the new connector to the harness. Double and triple check that the wires are being crimped correctly.

• Slide the heat shrink tubing over the butt splices and activate with a heat gun to create a secure connection.

New heat shield installed on wiring harness

• Replace the wire loom, sleeving, and heat shielding as necessary.

• Here, we've covered the ICP sensor and IPR valve connector wires with fiberglass insulation followed by a radiant heat shield. The radiant heat shield was left long so that it could be slid over the connectors themselves after installation.

Connectors installed on ICP sensor and IPR valve

• Reinstall the ICP sensor and IPR valve connectors and ensure the harness is not touching the turbocharger up-pipe connector.

Sours: https://www.dieselhub.com/maintenance/6.0-powerstroke-icp-sensor.html
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Your ICP sensor – 7.3 Injection Control Pressure Sensor – continuously monitors your diesel engine’s oil delivery pressure.

The 7.3 ICP sends the current pressure reading to the Powertrain Control Module (PCM) which in turn signals the 7.3 Injection Pressure Regulator (IPR) to add or reduce pressure.

The three of them, along with the 7.3 HPOP, provide enough oil pressure to the oil rails so that when you press on the accelerator, your 7.3 injectors actuate, your engine gets diesel and the cylinders fire … ideally, as smoothly as possible.

Dead Head Diesel is reader-supported. When you buy through links on our site, we may earn an affiliate commission.

7.3 ICP Sensor Basics

Just what does the ICP sensor on a 7.3 Powerstroke do?

In a diesel engine as heavily-reliant on adequate and correct oil pressure as the 7.3 HEUI system is, the 7.3 PCM needs instant and accurate information on the amount of pressure in the 7.3 oil rails. This is so that the PCM can determine how much pressure, at any given second, to deliver to the injectors for maximum fuel firing efficiency.

Broken down, the 7.3 Injection Control Pressure sensor tells the PCM what the oil pressure is in the driver’s side oil rail. It uses a five volt signal and returns it to the PCM. This analog voltage signal to the PCM tells it how much pressure’s in the oil rails.

And in conjunction with the 7.3 IPR, HPOP, and PCM, the Injection Control Pressure Sensor on your 7.3 provides this pressure information feedback in a continuous loop.

Broken down and simplified, these are the four components on your 7.3 Powerstroke diesel that regulate oil pressure in order to accurately and efficiently actuate your injectors enabling them to fire and create combustion.

  1. 7.3 ICP – Injection Control Pressure SENSOR (measures oil rail pressure in psi)
  2. 7.3 PCM – Powertrain CONTROL Module (send voltage signals to control oil pressure)
  3. 7.3 IPR – Injection Pressure REGULATOR (valve that plunges to physically create (regulate) oil pressure)
  4. 7.3 HPOP – High Pressure Oil PUMP (pump responsible for delivering the physical oil to the oil galleys and thus the oil pressure needed to actuate the injectors and ignite the fuel)

If, or should I say when, your 7.3 ICP fails, the PCM in your truck won’t know how much pressure’s in the oil rails and it won’t be able to regulate that pressure to efficiently actuate the injectors, resulting in poor engine performance.

What will actually happen is that it will get incorrect data from your 7.3 ICP and then deliver incorrect oil pressure, causing at best rough-running and at worst a no-start condition.

But let’s not get ahead of ourselves. 

ICP Sensor 7.3 Location

Just where is the ICP sensor on a 7.3 Powerstroke, anyway?

ICP Sensor 7.3 Location

Your 7.3 diesel’s ICP sensor is located on the driver’s side cylinder head toward the front of the engine compartment … near the HPOP.

ICP Sensor 7.3 Location Diagram

ICP Sensor 7.3 Location Diagram

7.3 ICP Sensor Symptoms

7.3 Powerstroke ICP sensor failure symptoms include:

  • Rough or lugging idling
  • Surging
  • Missing
  • Bucking
  • Stalling, especially at a full stop

The worst symptom of a bad, i.e. failed, ICP sensor on your 7.3 is that your engine just won’t start at all.

But, to tell you the truth, so many failed parts on your 7.3 diesel cause the exact same symptoms that it’s hard to tell what’s not working.

Luckily, and if you have even an inexpensive ODBII scan tool combined with a free to cheap cell phone app, you can do some further ICP investigation.

If there’s oil on the sensor’s female plug receptacle, its leads, or around the pigtail connector male plug, you’ve got a failed ICP sensor.

7.3 ICP Sensor Symptom – CEL

If your Check Engine Light – CEL – comes on and you have a diagnostic tool to read the OBD-II trouble code, a code of  P2285 or related ICP codes P2283, P2284, P2286, and P2287 point to trouble in your 7.3’s ICP sensor electrical circuit or the sensor itself.

But before we get to scan tools, apps, and PIDs…

7.3 ICP Sensor Test

One quick way to diagnose a failed 7.3 ICP sensor is to lift the plastic clip on the wiring connector and remove the pigtail from the sensor. If there’s oil on the sensor’s plug receptacle, its leads, or around the pigtail connector, you’ve got a failed ICP sensor.

Here’s why.

As mentioned above, the 7.3 ICP sensor measures pressure from the oil rail. Over time, all that oil pressure on your ICP pushes and exerts force on the sensor’s internal components and plastic electrical connector housing. A couple hundred thousand miles of that and it’s bound to fail. When it does, the oil will cause bad electrical readings as well as corrode the sensor’s ability to send those signals.

Here’s how to further test ICP sensor 7.3 as the cause of whatever above symptoms your Powerstroke’s having.

With your engine running, pull the connector, disconnect your 7.3 ICP pigtail. This causes the PCM to deliver a default ICP value of 725 PSI at idle. As apposed to the stock setting of 500-550 PSI at idle. There should be a noticeable difference in idle when you unplug your ICP.

If you don’t feel a difference, your 7.3 ICP is most likely already running on this default setting. This could mean that your ICP is bad.

Now, some people do this, but I wouldn’t recommend running your 7.3 without ICP readings. The sensor’s there for a reason. Replace it if it’s bad.

7.3 ICP Pressure

7.3 Injection Control Pressure PID

If you have a scan tool you can view your 7.3 diesel’s various ICP pressure readings with the following PID.

  • Short Name: ICP
  • PID #: 221446
  • Units: PSI

7.3 ICP Pressure Numbers

Here are some helpful numbers in diagnosing your 7.3 ICP pressure.

  • Starting – A pressure of 500psi is the minimum required to start your 7.3 diesel
  • Idle – Stock idle ICP pressure should be around 475psi on injectors with stock nozzles
  • Maximum – ICP of 2700-2800psi is stock maximum
  • Idle Default unplugged – 700 is 7.3 ICP sensor unplugged idle reading – default PCM value
  • Cranking while unplugged – 2200psi is the 7.3’s ICP sensor unplugged while cranking

7.3 IPC pressure at idle

Warmed up, your 7.3 diesel’s ICP pressure at idle should be close to 480-500psi (for a 99-2003) with about 8-12% IPR duty cycle.

1994-1997 – 7.3 ICP Pressure at Idle

  • 7.3 ICP pressure at idle – 575-600psi
  • IPR Duty Cycle – 11-14%

1999-2003 – 7.3 ICP Pressure at Idle

  • 7.3 ICP pressure at idle– 475-490psi
  • IPR Duty Cycle – 8-12%

7.3 ICP Pressure at Wide Open Throttle in Neutral

  • 7.3 ICP pressure – 1100-1200psi
  • IPR Duty Cycle – 18-21%

At WOT in neutral your 7.3 ICP should be – 1100-1200psi – With a caveat that after s/n 896812, after 3 minutes of WOT with no load, the number would be 1800psi. Because at WOT, your 7.3 ICP pressure number will spike and then level off if you stay on the throttle.

7.3 ICP Pressure During Hard Acceleration

  • ICP – 2450-2700psi
  • IPR – 35-40%

A good, healthy 1999-2003 7.3 HPOP can hold between 2800-3000psi during hard acceleration. A lot of 7.3s do just fine with an HPOP that produces 2600-2800psi.

And, if you’re a masochist…

7.3 Powerstroke ICP Voltage

If you’ve got an Auto Enginuity scan tool or SnapOn scan tool and want to get into the grit and grime of troubleshooting… Well, you’re either a tech or you seriously love troubleshooting. In any case, here are some numbers from the service CD on normal PSI, MPa – Megapascals, and 7.3 ICP Voltage.

PSI

MPa

V

0

0

.02v

 200

1.5

.4v

 400

 3

0.73v

600

 4

  .96v

800

 5.5

1.2v

1000

 7

1.4v

1200

 8

1.6v

1400

 9.7

1.9v

1600

 11

2.1v

1800

 12.4

2.3v

2000

 13.8

2.6v

2200

 15.2

2.8v

2400

 16.5

3v

2600

 18

3.3v

2800

 19.3

3.5v

3000

 20.6

3.8v

7.3 Powerstroke ICP Sensor Part Number

I’ve had an aftermarket 7.3 ICP sensor in my 2002 Ford F250 7.3 for about 2 years, so it works for me. If you’re “OEM or death” and have the money, here’s an OEM one on Amazon.

7.3 ICP Part Numbers

OEM Ford 7.3 ICP Part Number – F6TZ-9F838-A

International 7.3 ICP Part Number – 1807329C92

Interchangeable 7.3 ICP Part Numbers – F4TZ-9F838-A , F6TZ-9F838-A, 1807329C92, ICP102

OEM 7.3 ICP sensor

Given that an ICP sensor’s a pretty simple part, this 7.3 ICP sensor is OEM, it works, and will most likely get the job done with a minimum of headache.

7.3 Powerstroke ICP Sensor

Aftermarket 7.3 ICP Sensor

On the other hand, if you’re like me and are willing to roll the dice to save some dough, here are a couple of aftermarket 7.3 ICPs that should do the trick. Mine’s been in for a couple years now and still going strong. Knock on wood…

Aftermarket 7.3 ICP

Aftermarket 7.3 ICP with Pigtail

7.3 Injection Control Pressure Sensor With Pigtail

NOTE: I’ve got an enhanced AAA towing membership as insurance against my … “proclivity” to use aftermarket parts.

Just sayin’…

How to Replace ICP Sensor Ford 7.3

How to change the ICP sensor on 7.3 Powerstrokes.

  • Step 1 – Disconnect both negative battery cables
  • Step 2 – Remove the electrical 7.3 ICP pigtail connector from your ICP sensor. There’s a retaining clip that you need to lift up and pull up and away from the sensor.
  • Step 3 – Using a 5/8″ crow’s foot wrench on the ICP sensor itself loosen the sensor and remove it. (This assumes your 7.3 ICP sensor has never been replaced and is the OEM sensor with the 5/8″ nut recessed from the body of the sensor)
  • Step 4 – Spread some clean oil on the new ICP sensor’s o-ring and install it. The replacement ICP sensor takes a 1-1/16″ deep socket or wrench.
  • Step 5 – Torque your new 7.3 ICP sensor to spec – 9 lb./ft. – 108 INCH pounds.
  • Step 6 – If your ICP pigtail is coated with oil, cracked, or frayed replace it. (See 7.3 ICP Pigtail Replacement Below)
  • Step 7 – Apply dielectric grease to your newly-replaced ICP sensor terminals.

7.3 Injection Control Pressure Sensor Change Video

7.3 ICP Sensor Torque Value

9 lb./ft. – 108 lb./INCH

7.3 ICP Sensor Pigtail

ICP Pigtail 7.3 Part Number

5C3Z-12224-A

7.3 ICP Sensor Pigtail

7.3 ICP Pigtail Replacement

As you can see, the three wires on the replacement pigtail aren’t color-coded. So a “trick” I use is to remove, splice, and solder ONE WIRE AT A TIME, matching it to the same wire on the old pigtail as I go.

  1. Strip one of the pigtail wires
  2. Cut the corresponding wire on the old pigtail
  3. Strip the old pigtail about 1/2″
  4. Slip the heat shrink connector over one wire (I use heat shrink as I can never get the crimp connectors to work)
  5. Twist the two wires together
  6. Solder them
  7. Slip the heat shrink over the soldered wires
  8. Heat them with heat gun to tighten

7.3 ICP Sensor Summary

The ICP sensor on your 7.3 Powerstroke diesel is a pretty common failure item. When it does fail the good news is it’s relatively easy to diagnose, remove, and replace with a new part to get you and your 7.3 Powerstroke back on the road.

Oh, and don’t forget to check and replace the ICP pigtail if necessary.

Sours: https://deadheaddiesel.com/icp-sensor-7-3-injection-control-pressure-sensor/
2007 international 4300 DT466 I C P Sensor Testing no scanner require

7.3L Power Stroke ICP Sensor Replacement

While the procedures and the location of the sensor are identical for all 7.3L Power Stroke diesel engines, the 1999 - 2003 engines may appear slightly different than the 1994.5 to 1997 generation engine featured herein. Replacing the ICP sensor is by no means a daunting task, although the International style sensors are more difficult to remove than the newer style Ford sensors.

If you opt not to replace the ICP sensor harness (which there is little need to if the connector and pigtail are in good condition), thoroughly clean the ICP sensor harness connector with an electrical connector cleaner - CRC makes an aerosol "electronic cleaner" solvent that is plastic safe (won't damage connectors or seals) and is highly effective in removing oil from connectors.

Click any thumbnail to view high resolution fullsize image w/ addition details (where applicable)

ICP sensor location on a 7.3L Power Stroke diesel

• Disconnect both negative battery cables.

• The ICP sensor is located on the driver side cylinder head towards the front of the engine near the high pressure oil pump.

ICP sensor closeup

• Remove the electrical connector from the ICP sensor by relieving the retaining clip and pulling upwards away from the sensor. You'll notice that this ICP sensor has an accumulation of oil pooled in the sensor connection, an indication that the sensor should be replaced.

Ford vs International ICP sensors

• There are two types of sensors. The original International ICP sensor has a round body and a 5/8" integral nut at its base. It can be removed with a curved 5/8" open end wrench or a 5/8" crows foot.

• The Ford replacement sensor has a 1-1/16" hex head integrated into the body of the sensor It can be removed/installed with a 1-1/16" deep socket or wrench.

The two types are interchangeable.

ICP sensor removed

• Remove the ICP sensor from the high pressure oil galley in the cylinder head. Be cautious not to allow dirt or debris into the passage once the sensor is removed.

Installing new ICP sensor

• Coat the o-ring of the replacement sensor with clean engine oil and install the new sensor. Snug down, but do not overtighten.

• There's a number tools that can be used to install the sensor - a 1-1/16" sensor socket is being used here.

ICP sensor pigtail

• If the ICP connector pigtail is brittle, has exposed wires, or is otherwise compromised it should be replaced. The replacement pigtail is pricey, but does not necessarily need to be replaced every time the sensor is replaced.

• If not replacing the pigtail, install the connector on the ICP sensor after applying dielectric grease to the terminals and test for proper operation.

• If replacing the connector, remove the wire loom to expose the pigtail and create a reasonable sized workspace.

New ICP pigtail crimped in place

• Cut the ICP sensor connector harness and strip the wires so that roughly 1/4" of copper is exposed. Do the same on the replacement pigtail. Do not cut the wires too far into the harness, you only need to remove the length of wire that is compromised. We've cut the old pigtail roughly halfway between the connector and the main harness.

•The Ford replacement pigtail comes with three butt splices and heat shrink tubing. Install the heat shrink over the wires, then splice the pigtail to the existing harness.

• Once the splices have been crimped, cover them with the heat shrink tubing so that no part of the splice is exposed, then use a heat gun to secure the tubing.

Note - The wires of the replacement sensor may not be the same color as the wires on the new pigtail; use the original connector as reference so that the wires are spliced properly. The colors on our replacement sensor were indistinguishable from one another, therefore we simply matched the locations of the wires with that of the old connector. Double check your work before sealing the heat shrink tubing.

ICP sensor connector installed

• Reinstall and secure the wire loom on the sensor pigtail. For good measure, we installed an additional length of flexible wire loom so that the entire length of the pigtail was protected.

• Apply a small amount of dielectric grease to the connector terminals, then reinstall the connector and test for proper operation.

Sours: http://www.powerstrokehub.com/service/7.3-powerstroke-icp-sensor.html

Is icp sensor what

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P2285 ICP sensor tips and tricks on the 6.0 Powerstroke. (03 shown)

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