2.8L & 3.2L - Generic Scan Tool, Engine Code(S): AFP, BDF, BJS [A4 Platform] (20 Fuel Supply - 26 Exhaust System, Emission Controls)

• 20 Fuel Supply
  • Fuel supply system components, removing and installing
    • Fuel supply system components, removing and installing
    • Fuel tank with attachments and fuel filter (vehicles with engine code AFP and BDF), removing and installing
      • Notes
      • Installation position of Fuel Pump (FP) unit flange
      • Checking change-over valve
      • Checking pressure retaining valve
      • Installation position of fuel filter screw-type clamps
    • Fuel tank with attachments and fuel filter (vehicles with engine code BJS), removing and installing
      • Notes
      • Installation position of Fuel Pump (FP) unit flange
      • Checking vent valve
      • Installation position of fuel filter screw-type clamps
    • Safety precautions when working on fuel supply system
    • Rules of cleanliness
    • Fuel tank, draining
    • Suction jet pumps (vehicles with engine code BJS), removing and installing
    • Fuel Pump (FP) unit, removing and installing
    • Crash fuel shut-off
    • Fuel Pump (FP), checking
      • Notes
      • Checking fuel delivery quantity
      • Fuel Pump (FP) check-valve, checking
  • EVAP canister system
    • Function of leak diagnostic
    • Parts of EVAP canister system (vehicles with engine code AFP), removing and installing
    • Parts of EVAP canister system (vehicles with engine code BDF), removing and installing
    • Parts of EVAP canister system (vehicles with engine code BJS), removing and installing
    • Parts of Leak Detection Pump -LDP- (vehicles with engine code BJS), removing and installing
    • Overview plan of EVAP canister system (vehicles with engine code AFP)
    • Overview plan of EVAP canister system (vehicles with engine code BDF)
    • Evaporative Emission (EVAP) canister system, checking for proper seal
    • Evaporative Emission (EVAP) canister purge regulator valve 1, checking
    • Evaporative Emission (EVAP) canister purge solenoid valve 2 (vehicles with engine code BJS), checking
      • Notes
      • Test sequence
      • Checking resistance
      • Check wires to control module
    • Leak Detection Pump (LDP), checking
      • Notes
      • Test sequence
      • Checking wires to control module
    • Leak Detection Pump (LDP) and EVAP canister (vehicles with engine code BJS), removing and installing
      • Notes
      • Leak Detection Pump (LDP) -V144-, removing and installing
      • EVAP canister, removing and installing
    • EVAP system, checking using KLI 9210 tester
  • Electronic Engine Power Control (EPC)
    • Function of EPC system
    • Electronic Engine Power Control (EPC), servicing parts
    • Throttle Position (TP) sensor, checking
      • Notes
      • Checking voltage supply and wiring to control module
      • Checking wires to control module
• 24 Multiport Fuel Injection (MFI)
  • Fuel injection, servicing
    • General Notes on Fuel Injection
    • Overview of Component Locations (vehicles with engine code AFP)
    • Overview of Component Locations (vehicles with engine codes BDF and BJS)
    • Parts of the fuel injection (vehicles with engine code AFP), removing and installing
    • Parts of fuel injection (vehicles with engine codes BDF and BJS), removing and installing
    • Intake manifold upper section (vehicles with engine code AFP), disassembling and assembling
    • Intake manifold lower section (vehicles with engine code AFP), disassembling and assembling
    • Intake manifold (vehicles with engine code BDF), disassembling and assembling
    • Intake manifold (vehicles with engine code BJS), disassembling and assembling
    • Fuel rail (vehicles with engine code BDF), disassembling and assembling
    • Fuel rail (vehicles with engine code BJS), disassembling and assembling
    • Air filter (vehicles with engine code AFP), disassembling and assembling
    • Air filter (vehicles with engine code BDF), disassembling and assembling
    • Air filter (vehicles with engine code BJS), disassembling and assembling
    • Safety precautions
    • Rules of cleanliness
    • Technical data
  • Components, checking
    • Oxygen sensor heater for oxygen sensors before catalytic converter, checking
      • Notes
      • Test sequence (vehicles with engine codes AFP and BDF)
        • Notes
        • Checking Ground (GND) activation of oxygen sensor heater
      • Test sequence (vehicles with engine code BJS)
        • Notes
        • Checking Ground (GND) activation of oxygen sensor heater
    • Oxygen sensor heater for oxygen sensors behind Three Way Catalytic Converter (TWC), checking
      • Notes
      • Test sequence (vehicles with engine codes AFP and BDF)
        • Notes
        • Checking Ground (GND) activation of oxygen sensor heater
      • Test sequence (vehicles with engine code BJS)
        • Notes
        • Checking Ground (GND) activation of oxygen sensor heater
    • Mass Air Flow (MAF) sensor, checking
      • Notes
      • Voltage supply for Mass Air Flow (MAF) sensor, checking
      • Checking signal and Ground wires of Mass Air Flow (MAF) Sensor
    • Throttle valve control module, checking
      • Notes
      • Checking resistance
      • Checking voltage supply and wiring to control module
    • Engine Coolant Temperature (ECT) sensor, checking
      • Notes
      • Continuation of test if indication is approx. -40 ° C:
      • Continuation for all vehicles
      • Continuation of test if indication is approx. 140 ° C:
      • Checking wires to control module
    • Intake Air Temperature (IAT) sensor, checking
      • Notes
      • Continuation of test if indication is approx. -40 ° C
      • Continuation of test if indication is approx. 140 ° C
      • Checking wires to control module
    • Intake manifold change-over valve, checking
      • Notes
      • Checking wires to control module
    • Engine speed (RPM) sensor, checking
      • Notes
      • Check wires to control module
    • Fuel injectors, checking
      • Notes
      • Checking voltage supply
      • Activation and voltage supply, checking
      • Checking wires to Engine Control Module (ECM)
      • Injection quantity and proper seal of fuel injectors, checking
      • Checking for proper seal
      • Checking injection quantity
    • Fuel pressure regulator and residual pressure, checking
    • Intake system, checking for leaks (false air)
      • Checking with engine leak detection spray
  • Function tests
    • Oxygen sensors and oxygen sensor regulation before catalytic converter, checking
      • Notes
      • Checking oxygen sensor wires to control module
    • Oxygen sensors and oxygen sensor regulation behind catalytic converter, checking
      • Notes
      • Checking primary voltage
      • Checking oxygen sensor wires to control module
  • Engine Control Module (ECM)
    • Function
    • Voltage supply for Engine Control Module (ECM), checking
    • Engine Control Module (ECM), replacing
  • Additional signals, checking
    • Speed signal, checking
      • Notes
      • Check wires to control module
    • Signal from clutch pedal switch, checking
      • Notes
      • Checking voltage supply
      • Check wires to control module
    • Brake light switch and brake pedal switch, checking signal
      • Notes
      • Checking voltage supply
      • Check wires to control module
    • Terminal resistance for CAN-Bus, checking
• 26 Exhaust system, Emission controls
  • Exhaust system components, removing and installing
    • Exhaust system components, removing and installing
    • Exhaust manifold, front exhaust pipe with Three Way Catalytic Converter (TWC) and attachments (vehicles with engine code AFP)
    • Exhaust manifold, front exhaust pipe with Three Way Catalytic Converter (TWC) and attachments (vehicles with engine code BDF)
    • Exhaust manifold, front exhaust pipe with double catalytic converter and attachments (vehicles with engine code BJS)
    • Muffler with mounts (vehicles with engine codes AFP and BDF)
      • Notes
      • Installation position of double clamp
      • Installing front muffler parallel
      • Installation position of muffler suspension
      • Separation point at exhaust pipe
      • Installation position of end pipes of rear muffler
    • Muffler with mounts (vehicles with engine codes BJS)
      • Notes
      • Aligning exhaust system
      • Installation position of double clamps in direction of travel
      • Individual components of vacuum control unit
    • Exhaust system (vehicles with engine codes AFP and BDF), aligning
    • Three Way Catalytic Converter (TWC), checking
    • Exhaust Flap Valve 1 (vehicles with engine code BJS), checking
      • Notes
      • Check wires to control module
  • Secondary Air Injection (AIR) system
    • Secondary Air Injection (AIR) system
    • Function
    • Parts of Secondary Air Injection (AIR) system (vehicles with engine code AFP), removing and installing
      • Notes
      • Relay position assignment in protective housing (engine compartment, left)
    • Parts of Secondary Air Injection (AIR) system (vehicles with engine code BDF), removing and installing
      • Notes
      • Relay position assignment in protective housing (engine compartment, left)
    • Parts of Secondary Air Injection (AIR) system (vehicles with engine code BJS), removing and installing
      • Notes
      • Relay position assignment in protective housing (engine compartment, left)
    • Secondary Air Injection (AIR) system, checking for proper seal
    • Secondary Air Injection (AIR) valve, checking
      • Notes
      • Check wires to control module
    • Secondary Air Injection (AIR) pump motor, checking
    • Combination valve, checking
      • Notes
      • Test sequence (vehicles with engine code AFP)
      • Test sequence (vehicles with engine codes BDF and BJS)