MULTIPORT Fuel Injection (MFI) - 2.7L V6 BITURBO - APB, Bel

• 24 Multiport Fuel Injection (MFI)
  • Motronic Multiport Fuel Injection (MFI) system, servicing
    • Safety precautions
    • Rules for cleanliness
    • Technical data
    • Component locations, overview
      • Notes
      • Component location for exhaust temperature sensors on vehicle with automatic transmission:
    • Intake manifold, removing and installing
    • Wiring and component check with VAG1598/31 test box
      • Notes
      • Required special tools and test equipment
      • Work sequence
    • Procedure after interrupting voltage supply
      • Notes
      • Required special tools and test equipment
      • Work procedure
    • Motronic Engine Control Module (ECM) -J220- (without metal anti -theft housing), replacing
      • Notes
      • Required special tools and test equipment
      • Removing
      • Installing
    • Motronic Engine Control Module (ECM) -J220- (with metal anti -theft housing), replacing
      • Notes
      • Remove Engine Control Module (ECM)
        • Removing
      • Installing Engine Control Module (ECM)
    • Idle speed, checking
      • Test conditions
      • Checking idle speed
        • Notes
        • If the idle speed is too high or too low, or if the engine does not idle smoothly, and there are no malfunctions stored in the DTC memory, perform the following tests (marked with dots):
    • Fuel pressure regulator and residual fuel pressure, checking
      • Requirements
      • Testing system pressure
      • Checking residual fuel pressure
    • Fuel injectors, checking
      • A - Electrical testing of fuel injectors
      • B - Checking voltage supply
        • Test conditions
      • C - Testing activation of injectors
    • Fuel injection volume, fuel injector leakage and spray pattern of injectors, checking
      • Notes
      • Test conditions
      • Checking for leaks
      • Checking injection quantity
    • Fuel rail with fuel injectors, disassembling and assembling
    • Fuel Pump (FP) relay -J17- and relay activation, checking
      • Notes
      • Checking voltage supply
      • Checking activation
    • Mass Air Flow (MAF) sensor -G70-, checking
      • Notes
      • Voltage supply for Mass Air Flow (MAF) sensor, checking (Hitachi MAF sensor)
      • Wire connections for Mass Air Flow (MAF) sensor, checking (Hitachi MAF sensor)
      • Voltage supply for Mass Air Flow (MAF) sensor, checking (Bosch MAF sensor)
      • Wire connections for Mass Air Flow (MAF) sensor, checking (Bosch MAF sensor)
    • Air system for leaks (un-metered air), checking
      • Check with engine leak detector spray G 001 800 A1
  • Oxygen sensor control, checking
    • Function of oxygen sensor control
    • Oxygen sensor and oxygen sensor control before Three Way Catalytic Converter (TWC), checking
      • Special tools and shop equipment
      • Test conditions
      • Checking function
      • Checking oxygen sensor adaptation and oxygen sensor control
        • Notes
        • If the specified values in display fields 1 and/or 3 do not match the specifications, or if the readout does not fluctuate by at least 2 % (Display group 033):
        • Evaluation display group 032
        • Evaluation display group 033
    • Oxygen sensors aging, oxygen sensor before catalytic converter, checking
      • Test requirements
      • Test sequence for oxygen sensor 1 before catalytic converter bank 1
      • Continuation
      • Test sequence for oxygen sensor 1 before catalytic converter bank 2
    • Oxygen sensor and oxygen sensor control behind catalytic converter, checking
      • Test equipment and shop tools
      • Test conditions
      • Test requirements
      • Checking oxygen sensor control behind catalytic converter
      • Continuation
    • Oxygen sensor heater for oxygen sensor, checking
      • Notes
      • Checking voltage supply for oxygen sensor heater
      • Connectors for Engine code BEL
      • All engine codes
    • Oxygen sensor signal wire and activation, checking
      • Notes
      • Checking oxygen sensor wiring for Heated Oxygen Sensor (HO2S) -G39-
      • Checking wiring for Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-
      • Checking wiring for Heated Oxygen Sensor (HO2S) 2 -G108-
      • Checking wiring for Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131-
    • Oxygen sensors, removing and installing
      • Removing
  • Evaporative Emission (EVAP) system, checking
    • Evaporative Emission (EVAP) canister purge regulator valve -N80-, checking
      • Checking for leaks
        • Notes
        • Electrical testing of Evaporative Emission (EVAP) canister purge regulator valve -N80-
    • Checking voltage supply to Evaporative Emission (EVAP) canister purge regulator valve -N80- (solenoid valve)
      • Notes
      • Test requirements
        • Notes
        • Testing activation of EVAP canister purge regulator valve
  • Electronic Engine Power Control (EPC), checking
    • Function of Engine Power Control (EPC)
    • Significance of electronic Engine Power Control (EPC) warning light in instrument cluster
      • Notes
      • Checking function of warning light
    • Throttle valve control module -J338 -, checking
    • Throttle valve control module -J338 -, adaptation
      • Notes
      • Test conditions for adaptation of throttle valve control module
    • Angle sensor 1 for throttle drive (power accelerator actuation) -G187 - and Angle sensor 2 for throttle drive (power accelerator actuation) -G188-, checking
      • Notes
      • Checking voltage supply to throttle valve control module
      • Checking wiring for voltage, signal and activation
    • Throttle Position (TP) sensor -G79- and Sender 2 for accelerator pedal position - G185-, checking
      • Notes
      • Checking voltage supply of accelerator position sensors
      • Checking wiring
    • Kick-Down function, adaptation
      • Notes
      • Test conditions
  • Vacuum system layout
    • General air flow
    • Boost pressure control, subsystem
    • EVAP system (tank ventilation system), subsystem
    • Recirculating air control (deceleration recirculating air control), subsystem
    • Crankcase ventilation, subsystem
    • Suction jet pump (vehicles with automatic transmission)
    • Additional signals, checking
      • Engine speed (RPM) signal, checking
    • Fuel consumption signal for on-board computer, checking
    • Coolant temperature signal, checking
    • Vehicle Speed Signal (VSS), checking
    • Fuel tank level signal, checking
    • Brake light switch -F- and brake pedal switch -F47-, checking
      • Notes
      • Check switch
      • Check voltage supply
      • Check activation
    • Clutch Vacuum Vent Valve Switch -F36-, checking
      • Notes
      • Test sequence
      • Check switch
      • Check voltage supply
      • Check activation
    • Crash signal, checking
    • Signal for rough road recognition from ABS/EDL control module, checking
      • Notes
      • Test conditions
      • Test sequence
    • Data exchange between Engine/ABS/Transmission control modules, checking
      • Notes
      • Checking bus system
    • Data exchange between control modules, checking
      • Checking bus system