Section 18 (2.0L - MULTIPORT Fuel Injection (MFI) - AEG, AVH, AZG)

• Multiport Fuel Injection (MFI)
  • Fuel injection, servicing
    • General Notes on Fuel Injection
    • Overview of Component Locations (Vehicles with engine code AEG)
    • Overview of Component Locations (Vehicles with engine code AVH, AZG)
      • Notes
      • Relay position assignment in protective housing (engine compartment, left)
    • Intake manifold, upper part, disassembling and assembling
    • Intake manifold, lower part, disassembling and assembling
    • Air filter, disassembling and assembling
    • Safety precautions
      • Notes
      • Vehicles with engine code AEG
      • Vehicles with engine code AVH, AZG
    • Rules of cleanliness
    • Technical data
  • Checking components
    • Oxygen sensor heater for oxygen sensor before Three Way Catalytic Converter (TWC), checking
      • Notes
      • Recommended special tools and equipment
      • Test requirements
      • Test sequence (Vehicles with engine code AEG)
      • Test sequence (Vehicles with engine code AVH, AZG)
    • Oxygen sensor heater for oxygen sensor behind Three Way Catalytic Converter (TWC), checking
      • Notes
      • Recommended special tools and equipment
      • Test requirements
      • Test sequence
        • Notes
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
    • Mass Air Flow (MAF) sensor, checking
      • Notes
      • Recommended special tools and equipment
      • Test requirements
      • Function test
      • Voltage supply for Mass Air Flow (MAF) sensor, checking
      • Checking signal and Ground wires of Mass Air Flow (MAF) Sensor
        • Notes
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
    • Throttle valve control module, checking
      • Notes
      • Vehicles with engine code AEG (80-pin Engine Control Module -ECM-)
        • Notes
        • Function
        • Recommended special tools and equipment
        • Test requirements
        • Test sequence
        • Check resistance
        • Checking voltage supply and wiring to control module
      • Vehicles with engine code AVH, AZG (121 -pin Engine Control Module -ECM-)
        • Function
        • Recommended special tools and equipment
        • Test requirements
        • Function test
        • Check resistance
        • Checking voltage supply and wiring to control module
    • Engine Coolant Temperature (ECT) sensor, checking
      • Notes
      • Recommended special tools and equipment
      • Test requirements
      • Function test, vehicles with engine code AEG
      • Continuation of test if indication is approx. - 46.5 °C:
        • Notes
        • Vehicles with old connector shape
        • Vehicles with newer connector shape
      • Checking wiring
        • Overview
        • Notes
        • Vehicles with older connector shape
        • Vehicles with newer connector shape
      • Function test, vehicles with engine code AVH, AZG
        • Notes
        • Continuation of test if indication is approx. - 40.0 °C:
        • Continuation of test if indication is approx. 140.0 °C:
    • Intake Air Temperature (IAT) sensor, checking
      • Notes
      • Recommended special tools and equipment
      • Test requirements
      • Function test
        • Notes
        • Continuation of test if indication is approx. -40 or -46 °C:
        • Continuation of test if indication is approx. 140 °C:
      • Checking wiring
        • Notes
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
    • Check Engine Speed (RPM) sensor
      • Function
      • Recommended special tools and equipment
      • Test sequence
        • Notes
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
    • Check fuel injectors
      • Recommended special tools and equipment
      • Test requirements
      • Test sequence
      • Resistance values of fuel injectors, checking
      • Checking voltage supply
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
      • Activation and voltage supply, checking
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
      • Checking fuel injectors for injection quantity and proper seal
        • Recommended special tools and equipment
        • Test requirement
        • Test sequence
      • Checking Proper Seal
        • Notes
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
      • Checking Injection Quantity
        • Notes
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
    • Fuel pressure regulator and residual pressure, checking
      • Function
      • Recommended special tools and equipment
      • Test requirements
      • Test sequence
    • Checking intake system for leaks (unmetered air)
      • Checking with engine leak detection spray
        • Recommended special tools and equipment
        • Test requirement
        • Test sequence
  • Function tests
    • Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC), checking
      • Notes
      • Recommended special tools and equipment
      • Test requirements
      • Function test (Vehicles with engine code AEG)
      • Checking primary voltage
      • Checking oxygen sensor wires
      • Function test (Vehicles with engine code AVH, AZG)
    • Oxygen Sensor and oxygen sensor control behind Three Way Catalytic Converter (TWC), checking
      • Notes
      • Recommended special tools and equipment
      • Test requirements
      • Function test
      • Checking primary voltage
      • Checking oxygen sensor wires
        • Notes
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
  • Engine Control Module (ECM)
    • Function
    • Voltage supply for Engine Control Module (ECM), checking
      • Recommended special tools and equipment
      • Test requirements
      • Test sequence
      • Checking voltage supply terminal 30
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
      • Checking voltage supply terminal 15
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
    • Replacing Engine Control Module (ECM)
      • Procedure
  • Checking additional signals
    • Checking speed signal
      • Recommended special tools and equipment
      • Test requirements
      • Test sequence
        • Notes
        • Vehicles with engine code AEG
        • Vehicles with engine code AVH, AZG
    • Checking signal from clutch vacuum vent valve switch
      • Recommended special tools and equipment
      • Test requirements
      • Test sequence
        • Notes
        • Vehicles with 2-pin clutch vacuum vent valve switch
        • Vehicles with 4-pin clutch vacuum vent valve switch
    • Checking terminal resistance for CAN - Bus (Vehicles with engine code AVH, AZG)
      • Function
      • Recommended special tools and equipment
      • Test requirements
      • Test sequence