What is the ECU?

The Engine Control Unit is the ‘brain’ of the engine. Amongst other things it reads understands and makes decisions based on the accelerator pedal demand angle, engine temperature and oxygen content in the burnt exhaust gases. Dependant on this data, it will control the correct quantity of fuel to provide a mix of fuel economy, performance and emission control.

​

ECU programming will improve the power and torque, increase throttle response and widen the power-band, resulting in a more flexible engine and a much sharper drive.

Another major benefit of remapping is a reduction in fuel consumption. Extra torque at the bottom of the rev range requires less throttle input on acceleration and when maintaining steady speeds. The vehicle can also be driven in a higher gear at slower speeds, thus reducing revs, and this also applies to driving when fully loaded, towing or driving through elevation changes.

Benefits:

• Improved fuel economy
• Increased BHP
• Increased torque
• Smoother power delivery
• Better throttle response
• Safer overtaking

The obvious question is “Why don’t carmakers fine-tune their own ECU’s?” Well, large manufacturers sell vehicles across various markets that have various climates, different tax/emission regulations and diverse fuel quality. They have to take all these factors into consideration and therefore need to make substantial compromises in their tuning set-up. However, without facing such restrictions, we can safely optimise outputs and unlock the engines true potential.

ECU Remapping is a safe process. It is just allowing the engine to perform as it can and should do without any compromises