This is all regulated by one major chip, which has exactly what is referred to as an engine 'map'. This map 'reviews' all the inputs from sensing units as well as is configured to offer the ideal settings under a vast array of scenarios. Nonetheless, excellence is impossible to achieve as a whole, as a number of concessions have to be made. Primarily this is due to economic climates of scale. Makers need to produce vehicles for a large range of markets where problems such as fuel top quality could have a result. As many motor vehicles made use of in Europe may be driven into neighbouring countrysides with poorer energies offered, or might be used in severe environments where dust as well as extreme elevations prevail, the engine management map is a 'extensive brush' strategy to take all this into consideration.
Basically, there is no more any kind of reason to take into consideration engine remapping for either boosting performance at the cost of fuel intake, or the other way around. There are a variety of expert remapping firms that will offer you the possibility to have your pie and have it!