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Engine Controls - System/Component Tests
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Engine Controls - System/Component Tests
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Introduction
Air Induction Systems (Turbo)
Preliminary Checks
Boost Pressure
Charge Air OVERPRESSURE Switch
Electronic Control Unit (Ignition)
Notes
Preliminary Checks (240, 240 DL, 740 GL, 740 GLE & 760 GLE)
Power Circuit Checks
Ground Circuit Checks
Preliminary (740 Turbo & 760 Turbo)
Electronic Control Unit (Fuel)
Notes
Preliminary Checks (240, 240 DL, 740 GL & 740 GLE)
Power Circuit Checks
Ground Circuit Checks
Preliminary Checks (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 With REGINA EFI)
Oxygen (O2) Sensor
Throttle Switch
Relays
Fuel Pump Relay
Fuel Delivery
Fuel Pressure Regulator
Fuel Control
Air Temperature Sensor (740 GL REGINA EFI)
Fuel Injectors
Cold Start Valve
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
Oxygen (O2) Sensor Current Feed & Heater Resistance
Idle Control System
Notes
Idle Air Control Valve
Timing Control Systems
Notes
Detonation (Knock) Sensor (All Models Except 760 GLE)
Detonation (Knock) Sensor (760 GLE)
Emission Systems
Exhaust Gas RECIRCULATION (EGR)
740 Turbo & 760 Turbo
Fuel Evaporation
Thermostatic Air Cleaner
740 GLE