The electronic box uses a microprocessor linked to a memory device (EPROM or CHIP) in which the numerical values of the lighting points and injection times are recorded. Receptors permanently indicate the performance rate of the motor as well as all of its characteristics. Electronic signals transmit the information collected by the electronic box where a mirco-calculator determines the exact quantity of fuel necessary for the motor to function efficiently, and furthermore precisely determines the exact moment and the length of the gap between each electronic injector (one per cylinder or one per a combination of cylinders).
The advanced point of the ignition is the second basic, fundamental function of the control system, insofar that at the optimum moment and with the utmost precision, the total combustion of the fuel occurs within a homogenous mixture of air and fuel. This modification is practiced in 90% of situations. It consists of replacing the original chip with a chip containing the modified programme. In the majority of cases, the original chip is welded and therefore needs the installation of an insertion base (to weld) upon which the EPROM fixates itself.