Test chart

• Voltage Supply
  • Test voltage supply to the ECU
  • Function of main relay section
  • Function of pump relay section
  • Voltage from ECU plug terminal 4 to ground at terminal 17
• Air Flow Meter
  • Function of pump contacts
  • Adjusting exhaust gas CO level
  • Adjusting idle speed
• Throttle Valve Switch
  • Function of idle contacts
  • Function of full load contacts
• Fuel Pump, Pressure Regulator and Relay
  • Fuel pressure and pressure regulator functionality
  • Fuel pump delivery quantity
• Temperature Sensor
  • Temperature sensor resistance
• Injectors
  • Resistance of coil winding in injector
  • Resistance of series resistors
• Cold Start Valve
  • Voltage supply at cold start valve
  • Cold start valve coil winding resistance
• Thermo-Time Switch
  • Resistance between terminal “W” on thermo-time switch and ground
• Altitude Compensator
  • Resistance of windings in altitude compensator