Electronic Controls

A control unit controls correct amount of fuel, depending on engine speed, pressure in intake system, and engine temperature. When ignition is switched on, control unit receives its operating voltage direct from battery, via a voltage supply relay. It also controls the fuel pump, which normally is provided with current via pump relay only when engine is running. A time switch, in electronic control unit, allows fuel pump to run approximately 1 to V/i seconds after ignition is turned on. Control unit is connected to all sender units by a special wiring harness coupled to a multiple plug.