GENERAL INFORMATION

FUEL INJECTION CONTROL

THROTTLE VALVE OPENING CONTROL

IDLE SPEED CONTROL

IGNITION TIMING CONTROL

SELF-DIAGNOSIS FUNCTION

• When an abnormality is detected in one of the sensors or actuators related to emission control, the engine warning lamp (check engine lamp) illuminates as a warning to the driver.
  
• When an abnormality is detected in one of the sensors or actuators, a diagnosis code corresponding to the abnormality is set.
  
• The RAM data inside the engine-ECU that is related to the sensors and actuators can be read by means of the M.U.T.-III. In addition, the actuators can be force-driven under certain circumstances.
  

OTHER CONTROL FUNCTIONS

1. Fuel Pump Control
   Turns the fuel pump relay ON so that current is supplied to the fuel pump while the engine is cranking or running.
   
2. A/C Relay Control
   Turns the compressor clutch of the A/C ON and OFF.
   
3. Oil Feeder Control Valve Control
   The engine-ECU carries out the duty control of the oil feeder control valve according to the operation condition. This varies the phase angle of the camshaft to optimise the valve timing.
   
4. Waste Gate Solenoid Valve Control
   Control the supercharging pressure by controlling the duty of the waste gate solenoid valve.
   
5. Alternator Output Current Control
   Prevents alternator output current from increasing suddenly and idle speed from dropping at times such as when the headlamp are turned on.
   
6. Purge Control Solenoid Valve Control
   [Refer to GROUP 17 - Emission Control <MPI> - Evaporative Emission Control System - General Information (Evaporative Emission Control System) ].
   

GENERAL SPECIFICATIONS