4928594
Pressure Sensor
Cummins®

Introduction

The Cummins 4928594 Pressure Sensor is a critical component designed to monitor and regulate pressure levels within commercial truck systems. This sensor ensures the truck operates efficiently and safely by providing accurate pressure readings to the vehicle’s control systems. It plays a vital role in maintaining optimal performance of the truck’s engine and other critical systems by facilitating precise pressure management ¹.

Basic Concepts of Pressure Sensors

Pressure sensors measure the force exerted by a fluid (liquid or gas) on a surface and convert this physical pressure into an electrical signal. This signal is interpreted by the vehicle’s electronic control unit (ECU). Pressure sensors are essential in various automotive systems, including fuel injection, brake systems, and engine management, to monitor and control pressure levels for optimal performance and safety ².

Functionality of the Cummins 4928594 Pressure Sensor

The Cummins 4928594 Pressure Sensor is engineered to monitor and regulate pressure levels within truck systems. It provides real-time pressure data to the ECU, allowing for precise fuel delivery and combustion in the engine’s fuel injection system. This sensor ensures that pressure levels remain within specified parameters, contributing to the overall efficiency and reliability of the truck’s engine ³.

Key Features

The Cummins 4928594 Pressure Sensor is characterized by its robust design and high-quality materials, enhancing its durability and performance. It incorporates advanced technology to provide accurate and consistent pressure readings, even in demanding operating conditions. The sensor’s compact size and easy installation make it a practical choice for commercial truck applications.

Benefits

The Cummins 4928594 Pressure Sensor offers several benefits to commercial truck operations. By providing accurate pressure data, it contributes to improved system efficiency, allowing for optimal fuel consumption and engine performance. Additionally, the sensor enhances safety by ensuring that pressure levels remain within safe operating limits, reducing the risk of system failures or malfunctions. Its reliable performance and durability make it a valuable component for maintaining the overall health and efficiency of commercial trucks.

Troubleshooting and Maintenance

Common issues with the Cummins 4928594 Pressure Sensor may include inaccurate pressure readings or sensor failure. To address these issues, it is important to perform regular inspections and maintenance checks. This may involve cleaning the sensor and its surrounding components, checking for loose connections, and ensuring that the sensor is properly calibrated. If problems persist, it may be necessary to replace the sensor to maintain optimal functionality.

Compatible Engines

This Pressure Sensor is compatible with a variety of Cummins engines, ensuring seamless integration and reliable pressure monitoring. The compatible engines include:

M104B Series

• 15N CM2380 M104B

B4.5 Series

• B4.5 CM2350 B129B

B6.7 Series

• B6.7 CM2350 B135B

D4.0 Series

• D4.0 CM2620 D103B

F2.8 Series

• F2.8 CM2620 F135B

F3.8 Series

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B

F4.5 Series

• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

ISB Series

• ISB (Chrysler)
• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB4.5 CM2350 B104
• ISB5.9 CM2880 B149
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

ISBE Series

• ISBE4 CM850

ISC Series

• ISC CM2150
• ISC8.3 CM2250

ISF Series

• ISF2.8 CM2220 F117
• ISF2.8 CM2220 F129
• ISF3.8 CM2220 F103

Role of the 4928594 Pressure Sensor in Engine Systems

The 4928594 Pressure Sensor is integral to the efficient operation of various engine systems. Its primary function is to monitor and relay pressure data to the Engine Control Module (ECM), ensuring optimal performance and emissions control.

Integration with Exhaust Recirculation (EGR) System

In the Exhaust Recirculation (EGR) system, the pressure sensor measures the pressure of the recirculated exhaust gases. This data is vital for the ECM to adjust the amount of exhaust gas that is recirculated back into the intake manifold. Proper recirculation rates help in reducing nitrogen oxide (NOx) emissions, contributing to a cleaner combustion process.

Turbocharger Performance Monitoring

When integrated with a turbocharged engine, the 4928594 Pressure Sensor plays a significant role in monitoring the boost pressure. The sensor provides real-time data to the ECM, allowing it to make necessary adjustments to the turbocharger’s operation. This ensures that the engine receives the optimal amount of pressurized air, enhancing both performance and fuel efficiency.

Manifold Pressure Measurement

In the intake manifold, the pressure sensor measures the pressure of the air-fuel mixture entering the engine. This information is used by the ECM to fine-tune the fuel injection and ignition timing, resulting in improved engine performance and reduced emissions.

Exhaust System Regulation

The sensor also contributes to the regulation of the exhaust system by providing pressure data that helps in the efficient operation of the exhaust components. This includes managing the flow of exhaust gases and ensuring that the catalytic converter operates within its optimal temperature range.

Nitrogen Oxide Sensor Collaboration

Working in tandem with the Nitrogen Oxide (NOx) sensor, the 4928594 Pressure Sensor helps in precisely controlling the EGR system. This collaboration ensures that the engine meets emissions standards while maintaining performance.

Engine Control Module (ECM) Feedback Loop

The pressure sensor forms a critical part of the feedback loop with the ECM. By continuously providing pressure data, it allows the ECM to make real-time adjustments to various engine parameters, ensuring smooth and efficient operation.

Long Block Kit Enhancements

In a long block kit, the inclusion of the 4928594 Pressure Sensor enhances the overall performance and reliability of the engine. It ensures that all pressure-related parameters are monitored and controlled, leading to a more robust and efficient engine system.

Exhaust Plumbing and Recirculation Air Management

The sensor is also essential in managing the exhaust plumbing and recirculation air. By providing accurate pressure readings, it helps in optimizing the flow of exhaust gases and recirculated air, which is vital for both performance and emissions control.

Conclusion

The Cummins 4928594 Pressure Sensor is a vital component in ensuring the efficient and safe operation of commercial truck engines. Its accurate pressure monitoring and regulation capabilities contribute to optimal engine performance, fuel efficiency, and emissions control. Regular maintenance and proper calibration of this sensor are essential to maintain its reliability and effectiveness in demanding operating conditions.