Basically, there is not any need to think about engine remapping with a view to either increasing performance at the cost of fuel consumption, or vice versa. There are a variety of professional remapping companies that will certainly provide you the chance to have your cake and consume it!
This is all governed by one major chip, which includes what is called an engine 'map'. This map 'checks out' all the inputs from sensors and is programmed to provide the ideal settings under a variety of conditions. However, perfection is difficult to accomplish in basic, as a number of compromises have actually to be made. Mainly this is because of economies of scale. Suppliers have to make motor vehicles for a large stove of markets where concerns such as fuel high quality can have an effect. As many vehicles used in Europe could be driven right into neighbouring nations with poorer fuels readily available, or will be made use of in extreme settings where dust and also severe altitudes prevail, the engine administration map is a 'broad brush' technique to take all this into consideration.