System & Component Tests

• Introduction
• Turbochargers (740 Turbo & 760 Turbo)
  • Preliminary Checks
  • Boost Pressure
  • Charge Air OVERPRESSURE Switch
• Electronic Control Unit (Ignition)
  • Notes
  • Preliminary (240 DL/GL, 740 GL, 740 GLE & 760 GLE)
  • Power Circuit Checks
  • Ground Circuit Checks
  • Preliminary (740 Turbo & 760 Turbo)
• Electronic Control Unit (Fuel)
  • Notes
  • Preliminary (240 DL/GL, 740 GL & 740 GLE)
  • Power Circuit Checks
  • Ground Circuit Checks
  • Preliminary (760 GLE, 740 Turbo & 760 Turbo)
• Engine Sensors & Switches
  • Notes
  • Air Temperature Sensor
  • Coolant Temperature Sensor
  • Hall Effect Sensor (740 Turbo & 760 Turbo)
  • Manifold Absolute Pressure Sensor (740 GL W/REGINA EFI)
  • Mass Airflow Meter (240 & DL, 740 GL BOSCH EFI & 740 GLE)
  • Mass Airflow Meter (760 GLE)
  • Mass Airflow Meter (740 Turbo & 760 Turbo)
  • Oxygen (O2) Sensor
  • Throttle Switch
• Relays
  • Fuel Pump Relay
• Fuel Delivery
  • Notes
  • Fuel Pressure Regulator
• Fuel Control
  • Air Temperature Sensor (740 GL REGINA EFI)
  • Fuel Injectors
  • Cold Start Valve
  • Mass Airflow Meter (240 DL/GL, 740 GL With BOSCH EFI & 740 GLE)
  • Mass Airflow Meter (760 GLE)
  • Mass Airflow Meter (740 Turbo & 760 Turbo)
  • Oxygen (O2) Sensor
  • Oxygen (O2) Sensor Current Feed & Heater Resistance
• Idle Control System
  • Notes
  • Idle Air Control Valve
• Ignition System
  • Notes
  • Timing Control Systems
    • Detonation (Knock) Sensor (240 DL/GL, 740 GL, 740 GLE, 740 Turbo & 760 Turbo)
    • Detonation (or Knock) Sensor (760 GLE)
• Exhaust Gas RECIRCULATION (EGR)
  • Turbo Models Only
• Fuel Evaporation
• Thermostatic Air Cleaner - 740 GLE Only