The 1983 Datsun 200SX control unit is connected to the EFI harness by means of a multi connector, and the EFI harness is connected to other sensors. The essential role of the control unit is to generate a pulse. Upon receiving an electrical signal from each sensor, the control unit generates a pulse whose duration (injector open-valve time period) is controlled to provide an optimum quantity of fuel according to the engine characteristics. The control unit consists mainly of three generated circuits Read more […]