When a person decides to buy a car of his choice his main objective is to buy the car that is not only enriched with contemporary features but is also cost effective and delivers healthy fuel efficiency. And, therefore going through this requirement lots of people prefer to buy a diesel car, because it satisfies their all expectations which they expect from their vehicle. But, a diesel vehicle has its own feature like it makes extra sound while driving, the power generation and torque efficiency of these cars is comparatively lower than petrol cars.

In recent, modifying the software installed in the engine control unit to determine the performance of fuel injection of the vehicles has emerged as the simplest methods of diesel cars tuning. The main objective of ECU is to look after the every activity performed by the engine reply to instructions received from different sensors.

The software installed in the ECU determines the fuel efficiency of the car by making an appropriate timing of fuel transition so that the engine can operate smoothly at different rpm and delivers normal emission level. The diesel engines developed today have in-built ECUs which can be accessed through on-board diagnostic port.

Getting the diesel car tuned by an experienced mechanic will result in smooth engine performance that will produce more power and torque. Let's for instance if a car empowered with 2.0-litre diesel mill generating the power of 140 BHP, which can be remapped. After the remapping, its power output can be increased up to 30 BHP, depending upon the make of your car.