SFI SYSTEM


  1. OPERATION


    1. Since this engine is stopped and restarted repeatedly by the hybrid system, by providing an electric engine water pump assembly, coolant temperatures while the engine is operating will be stable, and shutting off the power to the pump motor contributes to fuel economy.

    2. The ECM receives pump motor speed pulse signals from the electric water pump driver circuit, and then determines the pump motor speed so that an optimal engine coolant flow volume can be obtained according to the operating conditions.

      A003IP4E01