SCR emulator is a device designed to override the onboard SCR system ECU and assure that engine ECU and other related electronic modules get the accurate data necessary for standard functionality. Emulator replaces SCR system ECU and makes it discreetly, without any negative impact on other vehicle systems. But let’s look up closer how it works and why this device might be interesting to you.
How does the SCR catalyst work?
SCR or Selective Catalytic Reduction system widely used on modern diesel trucks and other heavy vehicles to reduce NOx (nitrogen oxides) emissions. NOx emissions rise when diesel fuel burns at a higher temperature with a more significant amount of air necessary for the normal combustion process. It makes the diesel engine more efficient — moreover, additional NOx emissions generated on DPF (diesel particulate filter) regeneration process. Exhaust gas temperature is raised artificially by engine ECU to burn out the diesel particulate matter from DPF filter Continue reading SCR emulator, why you might need one and how it works