Engine Controls - System/Component Tests

• Introduction
• Air Induction Systems
  • Turbochargers (740, 940 & 940 Se Turbo)
    • Preliminary Checks
    • Check & Adjust Boost Pressure
    • Basic Adjustment Of Push Rod
    • Wastegate Valve Suction Test
• Computerized Engine Controls
  • Notes
  • Electronic Control Unit (Ignition)
    • Notes
    • Preliminary Checks
    • Power Circuit Checks
    • Ground Circuit Checks
  • Electronic Control Unit (Fuel Injection)
    • Notes
    • Preliminary Checks
    • Power Circuit Checks
    • Voltage Supply For Memory Check (Except 240 Series & Regina)
    • Ground Circuit Check
• Engine Sensors & Switches
  • Notes
  • Air Temperature Sensor
  • Coolant Temperature Sensor
  • Oxygen (O2) Sensor
  • Throttle Switch
• Relays
  • Fuel Injection Main Relay
  • Fuel Pump Relay
• Fuel System
  • Fuel Delivery
    • Notes
    • Fuel Pressure Regulator (Non-Turbo)
    • Fuel Pressure Regulator (Turbo)
  • Fuel Control
    • Air Temperature Sensor (740 Regina)
    • Fuel Injectors (Non-Turbo)
    • Fuel Injectors (Turbo)
    • Cold Start Valve
    • Mass Airflow Meter
    • 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
• Emission Systems & Sub-Systems
  • Exhaust Gas RECIRCULATION (EGR)
  • Fuel Evaporation
  • Thermostatic Air Cleaner
    • 940 GLE