Adblue fault on Volvo CE P6820D asphalt paver

Introduction to the Volvo CE P6820D Machine

The P6820D is a paving machine produced by Volvo Construction Equipment, renowned for its robustness, precision and efficiency. It is equipped with a D6J engine, managed by an EMS2.3 type EMS and an ACM which manages the post-treatment part of the emissions. This machine can be subject to numerous faults on the adblue system. We'll give you more details.

Recurring AdBlue System Problems

Despite its many advantages, the P6820D is not without its challenges, particularly where its AdBlue system is concerned. The AdBlue system is essential for reducing NOx emissions, but it can sometimes have shortcomings that affect the overall operation of the machine. Here are some recurring problems associated with the AdBlue system on the P6820D:

1. Fault Detection: AdBlue system faults may occur, indicating dosing or system sensor problems.
2. Power reduction: When faults are detected, the machine may enter a degraded mode, reducing engine torque and overall power, thus affecting paving efficiency.
3. Sensor and injector problems: NOx sensors and AdBlue injectors may fail or operate incorrectly, requiring maintenance or replacement.
4. Communication problems with the ECU: Communication errors between the AdBlue system and the ECU can lead to malfunctions and alerts on the machine's dashboard.

How to solve Adblue problems on your P6820D, Asphalt Paver

To solve the adblue problems on the Volvo paver, we're flashing the engine ECU and reprogramming the vehicle's other control units. By integrating new parameters into our program to neutralize the exhaust after-treatment, the machine will be able to operate normally. Power losses and vehicle downgrades will be eliminated once and for all.

Adblue defect on asphalt paver

We offer two solutions to Adblue problems. The first solution is to reprogram both units, removing the EGR valve, the FAP and the SCR. This requires our on-site intervention. The second solution is to install a data virtualization box in place of the ACM.

ECU Reprogramming Solution

By choosing the reprogramming solution, we directly modify the programming parameters of the Engine Management System (EMS) and the Emissions Control Module (ACM). The EMS is responsible for managing engine operating parameters, while the ACM regulates emission parameters. These two modules are interconnected via the Controller Area Network (CAN), facilitating real-time data exchange between the various machine components.

Reprogramming these modules deactivates the EGR valve, the particulate filter (DPF) and the selective catalytic reduction (SCR) system, key elements in emissions control. This eliminates the error codes associated with these components and significantly reduces soot emissions. It is important to note that this method does not solve the fundamental problems of these components, but effectively bypasses them to avoid faults. This solution remains effective for the entire life of the machine, with no expiry date. Any adblue defects on asphalt pavers will disappear.

In conclusion, reprogramming the EMS and ACM ECUs, linked via the CAN network, eliminates error codes linked to the EGR valve, FAP and SCR by directly adjusting their programming parameters.

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