AdBlue is a chemical that is usually used in selective catalyst reduction on diesel vehicles. This is done by reducing NOx levels in the vehicle.

The EGR valve recirculates precise amounts of the exhaust gases back into the engine through the air intake system, reducing the amount of emissions the engine produces.

Over time, the Diesel Particulate Filter becomes full and clogged with soot. That is why it should be emptied of trapped particulate matter regularly.

ECU remapping is taking a read from the ECU’s processing chip of the vehicles standard compromised map and adjusting various parameters within the map