FAP deactivation on Matrot 4300: Reprogramming of EDC17 CV52 box on Deutz TCD 6.1 engine
Deactivating the FAP (Diesel Particulate Filter) and EGR (Exhaust Gas Recirculation) systems is an effective solution for eliminating regeneration constraints and recurring problems linked to clogged filters and valves. In this article, we detail a technical intervention carried out on a Matrot 4300 sprayer, equipped with a Deutz TCD 6.1 engine and managed by an EDC17 CV52 control unit.
Analysis of faults found on the Matrot 4300 sprayer
Prior to our intervention, several faults were impacting the machine's performance due to malfunctioning SCR, FAP and EGR systems. In particular, the instrument panel was displaying the SPN code 524030, often associated with soot overload in the DPF, which impedes regeneration. In addition to this code, we also noted other technical anomalies such as code 812, indicating too low a pressure detected by the particulate filter's differential pressure sensor. This meant that it was difficult to detect filter clogging correctly, preventing proper regeneration.
Other faults concerned the EGR valve, including code 1443, indicating an overload, and code 1442, linked to a communication error with the valve. Furthermore, code 1440 referred to an internal fault in the EGR valve, blocking it in either the open or closed position, thus disrupting the flow of exhaust gases. Finally, code 69 indicated a failure in the DPF control valve, due to a faulty pressure sensor. These various codes revealed excessive soot accumulation in the DPF and a failure of the EGR valve, resulting in power limitation and activation of the downgraded mode.
Reprogramming the EDC17 CV52: Deactivation of the FAP and EGR systems
The work carried out on the EDC17 CV52 box enabled the FAP and EGR systems to be deactivated, while restoring the Deutz TCD 6.1 engine to full capacity. One of the first steps was to inhibit the FAP regeneration process. We modified the control unit program to disable this function, preventing the engine from forcing regeneration. This not only prevented untimely machine stoppages, but also reduced the extra fuel consumption caused by over-frequent regeneration.
We also physically disconnected the FAP differential pressure sensors, as well as the exhaust gas temperature probes. These sensors were responsible for the frequent errors encountered prior to the intervention. By removing them, we were able to eliminate these faults once and for all, and ensure stable operation over the long term.
With regard to the EGR valve, we carried out a complete neutralization, both in software and hardware. By blocking the EGR valve, we were able to maintain a clean, stable flow of air through the engine, improving combustion efficiency and reducing soot deposits in the exhaust system.
Finally, the reprogramming also removed the power limitations imposed by the FAP andEGR. This restored the engine's full potential in terms of torque and power. Eliminating the degraded mode also helped restore the sprayer's overall performance.
Advantages of the FAP/EGR deactivation solution on the Matrot 4300
Thanks to this intervention, the Matrot 4300 sprayer has regained optimum performance, without the constraints of the FAP and EGR systems. The Deutz TCD 6.1 engine now operates at full power, with torque optimized for intensive work. Frequent errors linked to the FAP sensors and EGR valve have been eliminated, improving machine reliability and reducing maintenance interventions.
By eliminating the forced regeneration process, we have also reduced maintenance requirements while extending the life of engine components. Without frequent regeneration, the engine consumes less fuel, which translates into lower sprayer operating costs.
For more information on Deutz engine servicing, please consult this article. We also offer specific solutions for sprayers, available here.
