Tips from a Ford Diesel Mechanic: What Is an ICP?

silver pickup truck isolated

Whether you’re a die-hard diesel enthusiast who pulls everything from horse trailers to construction equipment or you’re just interested in diesel technology, you’ve likely come across the term “ICP” more than a few times while researching diesel trucks. Continue reading

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Can a bad ICP sensor affect fuel mileage?

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Cars are a complicated thing and often parts go bad without your even knowing where to start in order to fix them. That being said, when something like the ICP sensor goes out in your car, there are a few different things you should know about what it can do to the performance of your car. The ICP sensor, like many sensors in your car, can affect the overall performance of your car.

The first thing that many people ask when the ICP sensor goes out is, does this affect my fuel mileage. The first and foremost condition that is directly caused by a bad ICP sensor is of course revving and shutting off without warning. The ICP sensor does not necessarily affect the gas mileage but it can affect the overall running of your car or truck. In a diesel engine, the ICP sensor works as a moderator of sorts that insures the engine is running at maximum efficiency. ICP stands for Injection Control Pressure. This means that the sensor provides feedback and indicates the needed and existing injection pressure in the injectors.

Though it can have an adverse effect on fuel economy in a limited range, disconnecting a sensor or having a sensor that is not working properly does not mean that you will go from having a truck or car that gets 30 miles per gallon that plummets to 10 miles per gallon. Likely, the change will be small so you may not even notice that there has been a change in fuel economy. More likely, you will notice that the engine is not being controlled as specifically or as closely as it may have been in the past. This can be seen through revving and stopping that is directly related to the pressure that should be indicated by the faulty sensor.

How to Install an ICP Sensor

Truck

Truck (Photo credit: – jre -)

Early style ICP sensors have become a hot topic lately as many older models have found themselves in need of a replacement. Installing new sensors is not too difficult and should only take 1.5-2 hours using this guide. 

First you’ll need a 5C3Z-12224-A connector, and a SC3Z-9F838-EA Sensor, and basic tools, it’s best to buy these new in box so you know they work. 

After you have the parts you need, you’ll need to determine what part you need to remove from your vehicle in order to gain access to the sensor. In most common applications this includes the air filter, degas jug, rear studs on the manifold for the intake, and possibly the FICM. After those are safely removed and placed out of the way you’ll have an exposed ICP sensor. 

Using a right angle pick of sufficient length you need to first remove the ICP sensors connector. Pull it out of the way so you have room to work around it. Then using an extension like the 1 1/16th crowfoot and possibly a swivel and tongs, you can remove the old sensor right by where the rear intake stud for the manifold used to be. This part can be tricky because the old sensor and wires may be very slick with old oil. 

After that you’re ready to install your new ICP replacement sensor. You want to install it just the way the other one was inside the housing, but this time be sure to install your connector wires as close to the sensor as possible. You’ll need to trim them up so no loose wires can make contact with any other hot parts of the engine, trimming your replacement wires the same length as your older ones could work perfectly, or you might need to make some slight adjustments. 

What is an ICP sensor?

The powerstroke engine used in Ford model vehicles requires the use of an ICP sensor. Any Ford owner who has a vehicle with a powerstroke engine must understand the ICP sensor, how it works and why it is important to properly maintain.
What is an ICP Sensor?

An injection control pressure sensor, or an ICP sensor, is part of the engine. The sensor provides information about the pressure to provide the vehicle with appropriate feedback on the appropriate amount of fuel delivery based on the current driving conditions.

How It Works

The ICP sensor works through a simple analog signal system. While driving, the sensor will pick up on the pressure caused by factors like load, road conditions and speed. The sensor will send an analog signal that tells the vehicle how much fuel is needed to properly continue running. The appropriate fuel delivery is then able to take place so that the vehicle continues running.

Importance of Maintenance

Ensuring that the ICP sensor is properly maintained is a vital part of caring for a Ford vehicle. The powerstroke system will not function properly if the signals are too weak or are somehow not communicated properly to gain appropriate fuel delivery.

Maintaining the ICP sensor will result in better fuel delivery efficiency. If the sensor is not functioning properly, then the risk of problems like delivering too little or too much fuel is a possibility. Depending on the situation, it might be necessary to replace the sensor or make repairs to ensure the signal is properly sent and received.

The ICP sensor is an important part of the Ford powerstroke vehicles. It sends a signal for fuel delivery based on the pressure readings while driving. When it is properly maintained, the vehicle will run efficiently.

What are ICP Sensors?

The powerstroke engine used in Ford model vehicles requires the use of an ICP sensor

Sensor installation

Sensor installation (Photo credit: Halfshaft)

. Any Ford owner who has a vehicle with a powerstroke engine must understand the ICP sensor, how it works and why it is important to properly maintain.

What is an ICP Sensor?

An injection control pressure sensor, or an ICP sensor, is part of the engine. The sensor provides information about the pressure to provide the vehicle with appropriate feedback on the appropriate amount of fuel delivery based on the current driving conditions.

How It Works

The ICP sensor works through a simple analog signal system. While driving, the sensor will pick up on the pressure caused by factors like load, road conditions and speed. The sensor will send an analog signal that tells the vehicle how much fuel is needed to properly continue running. The appropriate fuel delivery is then able to take place so that the vehicle continues running.

Importance of Maintenance

Ensuring that the ICP sensor is properly maintained is a vital part of caring for a Ford vehicle. The powerstroke system will not function properly if the signals are too weak or are somehow not communicated properly to gain appropriate fuel delivery.

Maintaining the ICP sensor will result in better fuel delivery efficiency. If the sensor is not functioning properly, then the risk of problems like delivering too little or too much fuel is a possibility. Depending on the situation, it might be necessary to replace the sensor or make repairs to ensure the signal is properly sent and received.

The ICP sensor is an important part of the Ford powerstroke vehicles. It sends a signal for fuel delivery based on the pressure readings while driving. When it is properly maintained, the vehicle will run efficiently.