Audi A1 GB Q2 GA Q3 F3 1.5 TFSI Air Intake Pressure Sensor 05E906051L

Audi A1 GB Q2 GA Q3 F3 1.5 TFSI Air Intake Pressure Sensor is a precision component of the petrol fuel system, responsible for the accurate measurement of intake air parameters in TFSI engines. A properly selected sensor from the Lambda probes and O2 sensors group supports the correct operation of the engine control unit, a stable fuel-air mixture, and the smooth performance of the power unit. By using an original Audi solution, the component maintains factory performance characteristics and predictable operational behavior.

Specifications and technical data

• SKU: 05E906051L
• Mark: Audi
• Condition: Used
• OEM Part Number: 05E906051L
• Substitutable numbers: 05E906051L, 05E 906 051 L, 0261230605, 0 261 230 605
• Fuel type: Petrol
• Category: Oxygen Sensors

Purpose and function in the TFSI petrol system

The presented sensor is designed to work with TFSI petrol engines, where precise control of the amount of air drawn into the cylinders is crucial. Correct reading of pressure and air parameters allows the ECU to:

• accurately dose fuel across the entire load range,
• maintain a stable mixture during petrol operation,
• reduce knocking and unwanted power fluctuations,
• ensure consistent operation with other sensors in the lambda probe and O2 sensor group.

As a result, the 1.5 TFSI engine maintains a predictable throttle response, and the control system can effectively manage ignition and fuel dosage under various load conditions.

Benefits of using an original Audi sensor

Using a sensor dedicated to specific Audi models translates into a number of practical advantages. The original design ensures:

• consistency of measurement characteristics with the maps stored in the engine control unit,
• proper cooperation with the lambda probe system and other O2 sensors,
• correct mechanical fitment to the manifold or intake duct,
• stable operating parameters within typical temperature and pressure ranges for TFSI units.

For the user, this means a lower risk of ECU errors, a reduction in limp mode activation, and more predictable vehicle behavior in daily use.

Characteristics of the used component

The offered sensor is a used part, sourced from an original Audi system, which allows for maintaining factory standards of fitment and compatibility. Such components are frequently chosen for the service of modern petrol units when the goal is to:

• maintain compliance with ECU software,
• preserve the original installation architecture,
• optimize repair costs while maintaining OEM quality.

A properly selected used air pressure sensor allows for restoring correct engine performance parameters without the need for interfering with control unit maps or the electrical harness.

Selection by part numbers and installation compatibility

When selecting a sensor for a specific Audi vehicle, it is crucial to compare the OEM part number and any interchangeable numbers with the vehicle data or service documentation. In practice, this allows for:

• verifying compatibility with a specific version of the 1.5 TFSI engine,
• checking compatibility with the existing harness and connector,
• avoiding issues with control unit errors after installation.

To better understand the principles of selecting used sensors and control modules, it is worth reading the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?, which discusses, among other things, selection by OEM numbers and hardware/software compatibility issues.

Service expansion within Audi sensors

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as additional pressure sensors, temperature sensors, or exhaust gas composition control elements, check the available parts in the Audi Lambda probes and O2 sensors category.