Fuel Control

The ECU calculates base injection pulse width by processing signals from the various engine sensors. Information from crankshaft position sensor is used to trigger timing of fuel injection. During normal driving conditions, injection duration is regulated in reference to mass air meter (Bosch), pressure and intake air temperature sensor (Regina), engine speed, oxygen content of exhaust gases and coolant temperature. Under full throttle conditions, a richer fuel mixture is provided for increased power and to lessen combustion heat in engine and catalytic converter.