A ECU controlled solenoid, Used to atomize fuel at a specific ratio into an engine’s cylinder for combustion.
A computer that determines air/ fuel ratios by using a multitude of sensor that relay existing conditions both on the outside side and inside of a vehicle. Then places this data into a pre programed 3D fuel map. Modern ECU’s also handle other functions of a vehicle such as traction control and ABS; though they may be a separated unit from the fuel control or Engine management ECU’s
A Petroleum additive that keeps small particles from combining with oil and creating sludge