The ECU – What is it?
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.
What is ECU Remapping?
The practice of remapping is to first read the ECU’s processor of a vehicle’s standard map and then to adjust various parameters within that map. As an example: fuel pressure, boost pressure (turbocharged engines) and ignition advance. When carried out correctly, this process will successfully unlock engine performance.