Simply put, there is no longer any sort of factor to take into consideration engine remapping for either raising performance at the cost of gas consumption, or vice versa. There are a variety of professional remapping companies who will supply you the opportunity to have your cake and consume it!
This is all regulated by one primary chip, which contains just what is understood as an engine 'map'. This map 'reviews' all the inputs from sensors and also is configured to provide the ideal setups under a vast array of scenarios. However, perfection is impossible to attain in general, as a number of concessions have to be made. Primarily this is because of economies of scale. Producers need to make vehicles for a large range of markets where problems such as fuel top quality can have a result. As many motor vehicles utilized in Europe will be driven into neighbouring countrysides with poorer fuels readily available, or will be made use of in rough atmospheres where dust and extreme altitudes are prevalent, the engine administration map is a 'extensive brush' method to take all this into factor to consider.