Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Section 13 (3.0L - Engine Controls - Fuel Injection & Ignition, Engine Code(S): AVK, BGN)
2009 Audi A6 BaseSECTION Section 13 (3.0L - Engine Controls - Fuel Injection & Ignition, Engine Code(S): AVK, BGN)
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- 01 On Board Diagnostic (OBD)
- On Board Diagnostic (OBD)
- Diagnostic Trouble Code (DTC) memory
- Output Diagnostic Test Mode (DTM)
- Basic setting
- Control module, coding
- Measured value block, reading
- Adaptation
- Login procedure or coding II
- Readiness code
- Readiness code
- Reading readiness code
- Readiness code, generating
- Notes
- Operation 1: Checking DTC memory
- Operation 2: Erase DTC memory
- Operation 3: Adapting the throttle valve control module to the engine control module
- Operation 4: Adapting kick down functionl
- Operation 5: Checking operating status of oxygen sensor control
- Operation 6: Diagnosis of oxygen sensor aging before catalytic converter
- Operation 7: Diagnosis of oxygen sensor operational readiness behind catalytic converter
- Operation 8: Diagnosis of tank ventilation valve
- Operation 9: Diagnosis of tank seal and oxygen sensor interchange recognition behind catalytic converter
- Operation 10: Diagnosis of oxygen sensor aging behind catalytic converter
- Operation 11: Catalytic converter diagnosis
- Operation 12: Diagnosis of secondary air injection system
- Operation 13: Reading readiness code
- 24 Multiport Fuel Injection (MFI)
- Motronic injection system, servicing
- Safety precautions
- Rules for cleanliness
- Technical data
- Component locations, overview
- Notes
- Location of Throttle Position (TP) sensor -G79- and Sender 2 for accelerator pedal position -G185-
- Location of Fuel Pump (FP) relay -J17-
- Location Brake light switch -F- and Brake pedal switch (cruise control/diesel direct fuel injection -F47-, Clutch vacuum vent valve switch -F36-
- Location, Engine Control Module in electronics box (plenum chamber)
- Locations in electronics box (plenum chamber).
- Identification of connector bracket - right side of vehicle
- Identification of connector bracket - left side of vehicle
- Location of Brake booster pressure sensor -G294-
- Location of Intake manifold change-over valve -N156-
- Air cleaner, disassembling and assembling
- Intake manifold change-over system components, removing and installing
- Wiring and component check with test box VAG 1598/31
- Procedure following interruption of voltage supply
- Procedure after voltage supply open circuit
- Engine Control Module (ECM) (without metal anti-theft housing), replacing
- Engine Control Module (ECM) (with metal anti-theft housing), replacing
- Idling speed, checking
- Fuel pressure regulator and holding pressure (vehicles up to 06.03), checking
- System pressure and holding pressure (vehicles as of 07.03), checking
- Fuel injectors, checking
- Fuel rail with injectors, disassembling and assembling
- Fuel injectors, removing and installing
- Injection quantity, leak tightness and spray pattern of injectors, testing
- Fuel Pump (FP) relay -J17- and activation, checking
- Mass Air Flow (MAF) sensor -G70-, checking
- Intake air system for leaks (unmetered air), checking
- Intake manifold change-over, checking
- Oxygen sensor control, checking
- Oxygen sensors and oxygen sensor control before catalytic converter, checking
- Oxygen sensors before catalytic converter, checking aging
- Oxygen sensors before catalytic converter, checking heating
- Oxygen sensors and oxygen sensor control behind catalytic converter, checking
- Oxygen sensors behind catalytic converter, checking aging
- Oxygen sensors behind catalytic converter, checking heating
- Oxygen sensors behind catalytic converter, recognizing interchanges
- Oxygen sensors before catalytic converter, removing and installing
- Oxygen sensors behind catalytic converter, removing and installing
- Fuel tank breather, checking
- Electronic Engine Power Control (EPC) (electronic throttle), checking
- Function of the electronic throttle system
- Malfunction lamp for electronic throttle in instrument cluster
- Electronic Power Control (EPC) warning lamp -K132-, checking
- Throttle valve control module -J338-, checking
- Throttle valve control module -J338-, adaptation
- Angle sensor for throttle valve actuator, checking
- Accelerator position sensor, checking
- Kickdown function, adapting
- Brake light switch and brake pedal switch, checking
- Clutch pedal switch check -F36-, checking
- Cruise Control System (CCS), testing
- Auxiliary signals, checking
- Vacuum Hose Diagram(S)
- Motronic injection system, servicing
- 28 Ignition/Glow plug system
- Ignition system, checking
- General notes on ignition system
- Safety precautions
- Technical data for ignition system
- Ignition coils with output stages, checking
- Motronic Engine Control Module (ECM) power supply relay -J271-, checking
- Engine speed (RPM) sensor -G28-, checking
- Intake Air Temperature (IAT) sensor -G42-, checking
- Engine Coolant Temperature (ECT) sensor -G62-, checking
- Engine Control Module (ECM) power supply, checking
- Knock control stop, checking
- Knock sensors, checking
- Camshaft Position (CMP) sensor, checking
- Misfire detection, checking
- Ignition system, checking
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.