Your Secret Weapons in Diesel Fuel Injection Repairs

ERT45R programming kit to test Catepillar C6.6 commn rail pumps

Part Number (SKU): 81.01.1C71
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The kit includes:
- program card to allow the ERT45R Simulator to actuate the necessary functions to test this type of pumps
- Set of adapter cables

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This programming kit seamlessly integrates with the ERT45R control unit, forming a comprehensive testing solution.

Caterpillar C4.4 Diesel Engine 

The Caterpillar C4.4 is a compact, highly efficient four-cylinder engine that has proven to be a reliable choice for small to mid-sized machinery. Its application ranges from agricultural machinery to construction equipment, proving its versatility in providing optimal power in various settings. 

You'll find this engine in compact track loaders, skid steer loaders, and small excavators. In the industrial sector: forklifts, aerial lifts, and other material handling machinery. In marine applications, powering small boats and yachts.

Caterpillar C6.6 Diesel Engine 

The Caterpillar C6.6 is a robust six-cylinder engine designed for more demanding applications. It's well-suited for larger machinery and heavy-duty equipment, where higher power output is required.

The C6.6 is often found in heavy-duty construction machinery such as excavators, loaders, backhoes, and pavers

In the farming sector,  tractors and harvesters

C6.6 engine is also used in power generation.

The 81.01.1C71 allows for accurate testing of Caterpillar C6.6 and C4.4 common rail diesel injection pumps.


The injection pump

In essence, while both the C4.4 and C6.6 are remarkable in their right, the primary design difference lies in their camshafts. 

The C4.4's bi-lobed camshaft enables it to efficiently operate four cylinders, while the C6.6's tri-lobed camshaft allows six pumping strokes per pump revolution, for the management of six cylinders. 

This fundamental difference in design contributes to their respective application ranges and performance capabilities. 


 A Deep Dive into the Unique Features of the Specific Management Software

The pulse wheel

The pulse wheel, also known as a timing wheel or trigger wheel, plays an essential role in the operation of the Caterpillar C6.6 and C4.4 pumps. It's a component that interacts with the engine speed sensor to provide information about the rotational speed and position of the crankshaft. 

This information is vital for the engine control unit (ECU) to time the fuel injection and ignition processes accurately. The ERT45R control unit simulates the same feature, with very high accuracy and allows to detect the physical state of the wheel and the speed calculations, to be compared with the test bench effective speed.

The pressure control

The software's ability to continuously monitor the real-time pressure generated by the pump rotation and adjust the pressure control valve feed accordingly is essential for efficient and safe operation.

Maintaining the desired pressure level in the circuit is made possible through closed-loop control, a sophisticated control method that uses feedback to ensure the controlled variable reaches the desired value. 

Furthermore, the continuous monitoring of the ampere value consumed by the valve is a critical safety feature. If the amperage exceeds a certain threshold, the automatic protection system can be triggered to preserve the valve from potential damage. This proactive approach to safety and preservation significantly enhances the longevity and reliability of the system.

The user can increase or decrease the pressure level by simply pressing the plus (+) or minus (-) keys on the interface. This allows for precise control over the pressure level.

The software also provides the option to save up to five different pressure levels in its memory. This feature is particularly useful when the system is used in applications that require frequent switching between specific pressure levels. Instead of manually adjusting the pressure each time, the user can simply select one of the pre-set levels from the memory.

The flow rate

Fuel flow rate is a critical parameter in the operation of hydraulic systems like those found in Caterpillar C6.6 and C4.4 pumps. The software plays a vital role in determining the real fuel flow in two different lines:

  • The flow feeding the rail: This is the main fuel line that carries fuel from the pump to the rail under pressure for injection into the engine.
  • The flow drained by the pressure control valve: This line carries excess fuel not used during the process of preserving the constant pressure.

The software measures the flow rate in these lines at low pressure for safety reasons; these lines are provided by the dedicated module 87.11.030A. This measurement is carried out using a dedicated flowmeter, the FL400/A. This module comes with differentiated plugs for both fuel lines, ensuring accurate measurements for each. The draining line from this module leads to the test bench tank.

At any time, the operator can easily switch between the two lines using the proper handle. This simplifies the process of monitoring and adjusting the flow, making it a very useful and effective method.

The injection control

The control of fuel injection is a crucial aspect of engine operation. In this system, the software is designed to trigger the injection valve with an accurate reference for each cam. The selection process is accomplished by choosing the specific cam, with a value of zero indicating that the injection is triggered for all cams.

Two parameters, T3 and T4, are used to identify the injection characteristics. T3 controls the angular delay with an accuracy of 0.1°, while T4 controls the time duration with an accuracy of 0.01 milliseconds. This high level of precision ensures that the right amount of fuel is injected at the right time.

Interestingly, both T3 and T4 parameters are used in hexadecimal format. Hexadecimal is a base-16 number system commonly used in computing to represent binary data in a more human-readable way. Using hexadecimal format provides the highest resolution, allowing for even more precise control over the injection process.

This detailed control of the injection process plays a vital role in the overall performance and efficiency of the pump. By accurately controlling when and how much fuel is injected, the pump complies an optimized combustion, minimized emissions, and maximized fuel efficiency.

The pump timing

The proper phasing of the pump is an essential operation to warrant that the pump is synchronized with the opening and closing of the injection valves. This ensures that fuel is delivered precisely when it is needed for combustion. Incorrect phasing can lead to inefficient combustion, increased fuel consumption, and potentially damage to the engine.

Correct phasing ensures that the pump operates efficiently and effectively, delivering the right amount of fluid at the right time.

To facilitate the operator in locking the shaft in the correct position corresponding to the pump phasing, it is necessary to install a specific module on the test bench bed. This module is designed to detect the appropriate position reference that has been machined onto the half coupling - an essential component for driving the pump.

This coupling is part of the driving and mounting kit, which is a separate module which includes the mounting flange, designed to allow the lubrication of the pump, which is crucial for its operation. Lubrication reduces friction between the pump's components, thereby minimizing wear and tear and extending the lifespan of the pump.

In instances where the test bench isn't equipped to provide oil lubrication, a separate module is available to fill this role. This module (reference Marbed 8217) can be used to ensure that the pump receives the necessary lubrication for its effective operation..

The electrical connections 

At the back of the control unit, you'll find four plugs. These are designed to accept the basic cable that comes with the programming kit. This basic cable serves as a universal connector, providing a standardized interface between the control unit and the various components of the system.

On the other side, we have the adapter cable. The main purpose of this cable is to offer flexibility and adaptability for future applications that may require different connectors. It acts as an intermediary between the basic cable and the different connectors that might be required for specific pump applications.

The adapter cable essentially future-proofs the system. It allows for easy adaptation to new technologies or different pump models that might come with unique connection requirements. By providing specific connections for each pump application, it ensures that the system remains versatile and compatible with a wide range of equipment.

The RPM sensor

The RPM (Revolutions Per Minute) sensor, is important as it plays a significant role in monitoring and controlling the speed of the pump. The connection process for this sensor has been designed to be secure and straightforward, applying original connector. This reduces the risk of connection errors, and helps maintain a stable, reliable signal from the RPM sensor

The injection valve

The original connector is applied on the bifurcation coming from the adapter cable, which serves as an extension of the basic cable. This setup ensures a robust connection to the injection valve, allowing it to function optimally.

The adapter cable, in this context, plays a crucial role by providing the necessary flexibility and adaptability to connect different injection valves that may have varying connector requirements. It not only simplifies the setup process but also ensures compatibility with future applications.

Take your workshop to the next level with ERT45R system and Cat C4.4 & C6.6 programming kit.

Investing in the Deteq ERT45R and the programming kit for Caterpillar C4.4 and C6.6 pumps is a strategic move that can enhance service quality, increase productivity, expand your service offering, future-proof your business, and promote growth and development. This decision will pay off in both the short and long term, providing a comprehensive solution right at your fingertips to achieve all this:

Full-Spectrum Control and Reliability

The ERT45R system offers an all-encompassing, 360-degree control over all critical features of Cat C4.4 and C6.6 diesel pump testing. With its highly accurate measurements, user-friendly interface, and adaptable modules, it ensures that every aspect of the testing process is under precise control, leaving nothing to chance. This comprehensive coverage provides 100% reliability, giving you complete confidence in your testing results.


Expanded Service Offering

By being equipped to test widely-used pumps like the Caterpillar C4.4 and C6.6, your workshop can broaden its service offering. This expanded range can attract a larger customer base and increase revenue.


Growth and Development

Investing in advanced test equipment such as the ERT45R system signals a commitment to growth and development. It not only enhances your current service offering but also equips you to handle future developments in diesel pump technology.


Increased Productivity

The ease of use and straightforward testing method of the ERT45R system can streamline workflows and increase your productivity. More tests can be conducted in less time, leading to higher throughput.


Enhanced Service Quality

With its accurate measurements and controls, the ERT45R system can significantly improve the quality of service that your workshop provides. This improvement can lead to higher customer satisfaction, repeat business, and positive word-of-mouth.


Future-Proof Business:

The modular and adaptable nature of the ERT45R system prepares your workshop for future needs. As new pump models become relevant in your ever-evolving market, you can easily add the required modules to your system, ensuring you stay always relevant and competitive.



The gradual investment approach allowed by the ERT45R system's modularity reduces financial risk and aligns cost recovery with revenue flow. This cost-efficiency makes it a smart investment for your diesel workshop, unlike other systems that demand unrealistic heavy workloads to justify their high initial costs.


Buy now


The ERT45R control unit together with the programming kit for CAT C4.4 and C6.6 pumps is not just a tool; it's a comprehensive testing system designed for ongoing use, an asset that can be used continuously, expanding your capabilities over time.

For those who are committed to their profession and looking to enhance their service potential, this testing system isn't just a piece of equipment - it's an invaluable investment that is arguably unparalleled anywhere in the world.


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