5.9 Cummins Boost Pressure Sensor Location

The boost pressure sensor for a 5.9 Cummins engine is located on the driver’s side of the turbocharger inlet manifold. It is held in place by two mounting screws and can be accessed from under the hood. The boost pressure sensor reads changes in air intake pressure, allowing it to adjust fuel delivery as needed to maintain adequate power output and efficiency.

This type of sensor helps ensure that your engine runs efficiently while reducing emissions and improving overall performance.

The 5.9 Cummins boost pressure sensor can be found in the intake manifold of your engine, typically located near the turbocharger. This component is responsible for measuring how much air pressure is being forced into the cylinders and providing an accurate reading to determine the amount of fuel that should be injected into them. It’s important to keep this component in good working order, as it helps maintain optimal performance levels and ensure proper fuel economy.

Dodge Ram Cummins 5.9 MAP/Boost Sensor Replacement

Where is the Boost Sensor on a 5.9 Cummins?

The boost sensor on a 5.9L Cummins engine is located in the intake manifold of the engine, near the turbocharger. This sensor monitors and measures the amount of air pressure that is present in the intake manifold, which helps to determine how much fuel should be injected into the engine for optimum performance. The boost sensor has two major components: an internal vacuum line and a pressure port.

The vacuum line connects to both sides of the intake manifold while monitoring air pressure levels in different areas of it; this allows it to detect changes in airflow when adjusting injector timing or other parameters such as turbo speed or exhaust backpressure levels. Meanwhile, the pressure port reads atmospheric pressures outside of the engine block so that any difference between them can be compensated with additional fuel being added if necessary.

What is Code P0236 5.9 Cummins?

Code P0236 is a diagnostic trouble code (DTC) for the 5.9 Cummins diesel engine. This code can indicate an issue with the turbocharger or supercharger boost pressure sensor circuit, which is responsible for regulating the intake pressures of the engine and boosting performance. The P0236 code specifically indicates that there may be a problem with either the voltage output or signal from this sensor, indicating that it has exceeded its normal range of values.

Common causes of this DTC include faulty wiring, damaged connectors, an open circuit in the connection between components and sensors within the system, or a failed turbocharger/supercharger boost pressure sensor itself. If you’re experiencing this code on your 5.9 Cummins diesel engine then it’s important to take action as soon as possible; otherwise you could risk further damage to other components in your vehicle due to incorrect air/fuel ratios being applied by your ECU based on faulty readings from this particular sensor.

What Does the Map Sensor Do on a 5.9 Cummins?

The MAP sensor on a 5.9 Cummins is an important component of the engine’s air-fuel system. It helps to ensure that the engine receives the correct amount of fuel for smooth, efficient operation. The MAP stands for Manifold Absolute Pressure and it measures how much pressure is present inside your intake manifold.

This information is used by both the ECU (Engine Control Unit) and injectors to adjust their settings accordingly in order to maintain optimal performance and efficiency from your engine. The MAP sensor provides readings back to the ECU which can be used to determine air Intake mass flow rate, exhaust gas recirculation rate, as well as other important variables related to combustion processes within your engine cylinder heads.

What is Code P0237 5.9 Cummins?

Code P0237 5.9 Cummins is a diagnostic trouble code (DTC) that indicates the fuel pressure sensor circuit has an abnormally low voltage reading. The 5.9 Cummins engine uses a fuel pressure sensor to measure the amount of fuel being delivered to the injectors, and when this reading falls below normal levels, it triggers a DTC like P0237. When this code appears, it can be indicative of several potential issues such as problems with air flow or low fuel pressure caused by clogged filters or faulty components in the system.

It could also alert you to more serious issues like a defective high-pressure pump or even worn cylinder heads which would require further investigation by qualified professionals in order to determine the best course of action for repair or replacement.

5.9 Cummins Boost Pressure Sensor Location

Credit: www.sbmar.com

6.7 Cummins Turbo Boost Sensor Location

The 6.7 Cummins Turbo Boost Sensor is located on the driver’s side of the engine, just below the intake manifold. It is a small black box with two wires leading to it; one wire connects to an electrical connection and the other leads directly to the turbocharger itself. The sensor measures air pressure in order to adjust fuel delivery in accordance with engine load, ensuring maximum efficiency and performance from your vehicle’s powerplant.

5.9 Cummins Map Sensor Symptoms

If you drive a vehicle with a 5.9 Cummins diesel engine, it is important to be aware of the symptoms associated with a faulty map sensor. Common signs that your map sensor needs repair or replacement include rough idling, poor acceleration, reduced fuel efficiency and black smoke from the exhaust. Additionally, you may hear an abnormal whining noise coming from your engine while in operation or experience decreased power output during hard acceleration.

If you notice any of these symptoms in your vehicle, have it inspected by an automotive technician as soon as possible to prevent further damage to your engine.

5.9 Cummins Map Sensor Problem

The 5.9 Cummins engine utilizes a MAP (Manifold Absolute Pressure) sensor to monitor engine load, which is an important factor in controlling fuel injection and turbocharger boost pressure. A common problem with the 5.9 Cummins engine is a faulty or malfunctioning MAP sensor, which can cause reduced performance, poor acceleration, and decreased fuel economy. If your truck is experiencing any of these problems, it’s possible that the MAP sensor needs to be replaced or adjusted in order for it to work correctly again.


In conclusion, the 5.9 Cummins Boost Pressure Sensor can be a tricky component to locate on your own, but with the right resources and knowledge it is possible to find it quickly and easily. The boost pressure sensor plays an important role in monitoring engine performance, so locating it correctly is essential for keeping your engine running smoothly. With this information, you should now have all of the necessary tools to confidently locate the 5.9 Cummins Boost Pressure Sensor on your vehicle.


  • Zayn

    Zohn Zayn Smith is a seasoned automotive enthusiast with over 15 years of experience in the industry. As the Founder and Chief Editor of Truckguider, he specializes in Dodge Ram models, including the Ram 1500 and Ram 2500. His deep understanding of these trucks makes him a trusted authority on everything from performance and maintenance to towing capabilities.

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