If you ride often during trips with your diesel car recently it is possible that the particle filter is clogged even after final few kilometers and its replacement is expensive.
RPM offers to delete them directly in the management control of the vehicle and remove the inside of the filter while maintaining its appearance.
The EGR valve
EGR "exhaust gas recirculation" is a process that injects antimécanique a certain speed range gases burn in the fresh air intake.
Of scale deposits on the valves of the valve which can not be closed, the device therefore works continuously resulting in poor combustion, flue gas and clogging of the inlet of the particulate filter and causing a poorer engine performance.
Rpm you can deactivate the software and finally block.
