4070036
Throttle Position Sensor
Cummins®

The Throttle Position Sensor (Part #4070036) by Cummins is a component designed to monitor the position of the throttle in commercial trucks. This sensor plays a role in the operation of these vehicles by providing data to the engine control unit (ECU), which optimizes engine performance and fuel efficiency.

Basic Concepts of Throttle Position Sensor

A Throttle Position Sensor is an electronic device that measures the angle of the throttle valve inside the engine’s intake tract. It converts this mechanical position into an electrical signal, which is then sent to the ECU. This sensor is integral to the engine management system, as it allows the ECU to adjust fuel delivery and ignition timing based on the driver’s input, thereby ensuring optimal engine performance under varying conditions ¹.

Purpose of the 4070036 Throttle Position Sensor

The 4070036 Throttle Position Sensor is designed to accurately detect the position of the throttle and communicate this information to the ECU. By doing so, it enables the ECU to make precise adjustments to fuel delivery and ignition timing. This interaction enhances engine performance, ensures efficient fuel consumption, and contributes to smoother drivability. The sensor’s accurate readings are vital for maintaining the balance between power output and fuel efficiency ².

Key Features

The 4070036 Throttle Position Sensor is characterized by its robust design and high-quality construction materials, which ensure durability and reliability in demanding commercial truck environments. It features precise calibration for accurate throttle position readings, a compact design for easy installation, and is built to withstand the harsh conditions typical of heavy-duty truck operations. These attributes contribute to its performance and longevity.

Benefits

Utilizing the 4070036 Throttle Position Sensor offers several advantages. It contributes to improved engine efficiency by enabling the ECU to make more informed decisions regarding fuel delivery. This can lead to enhanced drivability, as the engine responds more accurately to driver inputs. Additionally, by optimizing fuel delivery, the sensor may help reduce emissions, aligning with environmental regulations and promoting sustainable operation ³.

Installation and Integration

Proper installation of the 4070036 Throttle Position Sensor is crucial for its effective operation. It should be securely mounted in the throttle body and correctly connected to the vehicle’s electrical system. Care should be taken to ensure all connections are tight and free from corrosion to prevent signal interference. Following the manufacturer’s guidelines for installation will help ensure the sensor functions as intended within the engine system.

Troubleshooting and Maintenance

Regular maintenance of the 4070036 Throttle Position Sensor is important for its longevity and optimal performance. This includes checking for any signs of wear or damage, ensuring electrical connections are secure, and cleaning the sensor as necessary to remove any debris that could affect its operation. Common issues may include inaccurate readings or a lack of response from the sensor, which could indicate a need for adjustment, cleaning, or replacement.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a strong reputation in the commercial truck industry for producing reliable and high-performance engines and components. The company’s extensive product range and commitment to innovation and quality have made it a preferred choice among commercial vehicle operators worldwide.

Throttle Position Sensor (Part 4070036) Compatibility with Cummins Engines

The Throttle Position Sensor (part 4070036) manufactured by Cummins is designed to be compatible with a range of Cummins engines, ensuring seamless integration and optimal performance across various models.

K-Series Engines

• K19: The Throttle Position Sensor is engineered to fit this model, providing precise control over the engine’s throttle position.
• K38: This engine benefits from the sensor’s accuracy, ensuring smooth and responsive throttle operation.
• K50: The sensor’s compatibility with the K50 model ensures reliable performance and efficient engine management.

QSB Series Engines

• QSB5.9 CM850: The Throttle Position Sensor is designed to work with this engine, ensuring precise throttle control and enhancing overall engine performance.
• QSB6.7 M CM2250: This engine model is also compatible with the sensor, providing accurate throttle position data for optimal engine operation.

QSK Series Engines

• QSK19 CM850 MCRS: The sensor fits this model, ensuring reliable and precise throttle control.
• QSK50 CM2150 K107: This engine model is compatible with the sensor, providing accurate throttle position feedback.
• QSK50 CM2150 MCRS: The sensor’s compatibility with this model ensures smooth and responsive throttle operation.
• QSK60 CM850 MCRS: The Throttle Position Sensor is designed to fit this engine, ensuring precise control over the throttle position.

QSM Series Engine

• QSM11 CM570: This engine model is also compatible with the sensor, providing accurate throttle position data for optimal engine performance.

The Throttle Position Sensor (part 4070036) is a component for ensuring that these Cummins engines operate efficiently and reliably. Its compatibility with a wide range of engine models underscores its versatility and importance in maintaining engine performance.

Role of Part 4070036 Throttle Position Sensor in Engine Systems

The 4070036 Throttle Position Sensor (TPS) is integral to the operation of modern engine systems, particularly those utilizing an Electrical Throttle Control (ETC) system. This sensor is responsible for monitoring the position of the throttle lever, which is a key component in the throttle control mechanism.

When the driver presses the accelerator pedal, the throttle lever is moved, opening the throttle plate to allow more air into the engine. The TPS detects the angle of the throttle lever and sends this information to the Engine Control Unit (ECU). The ECU uses this data to adjust the fuel injection and ignition timing, ensuring optimal engine performance and efficiency.

In ETC systems, the TPS plays an even more significant role. Unlike traditional mechanical throttle systems, ETC relies on electronic signals to control the throttle plate. The TPS provides real-time feedback to the ECU, allowing for precise control of the throttle position. This results in smoother acceleration, improved fuel economy, and reduced emissions.

The integration of the TPS with the ETC system also enhances the overall drivability of the vehicle. By providing accurate throttle position data, the TPS enables the ECU to make rapid adjustments to the engine’s operation, responding instantly to changes in driver input. This leads to a more responsive and enjoyable driving experience.

Conclusion

In summary, the 4070036 Throttle Position Sensor is a vital component in modern engine systems, particularly those equipped with Electrical Throttle Control. Its role in monitoring throttle lever position and providing feedback to the ECU ensures precise control of engine operation, leading to improved performance, efficiency, and drivability.