03/05/2013
ECU Basics:- The engine control unit (ECU) is a computer that controls the fuel injection system for an engine. This computer takes input from a number of sensors (intake air temperature, RPM, etc) and outputs to a number of actuators (injectors, coils, solenoids, etc). The way that it does this is to run a program that is stored in the ECUs memory. This program is commonly referred to as a ROM, for read only memory, but in modern ECUs, the program is actually stored in flash memory, and can actually be overwritten like you would a flash drive on your computer. Well, not exactly like that, but the idea is the sam
