Audi A3 8P Fuel Rail Pressure Valve Sensor Unit 2.0 TDI Diesel Engine 03L130089P

Audi A3 8P 2.0 TDI Diesel Fuel Rail Pressure Sensor 03L130089P is a component of the diesel fuel system, responsible for precise measurement of pressure in the fuel rail. A properly functioning sensor supports stable operation of the diesel engine, facilitates starting, and helps maintain smooth engine performance.

Specifications and technical data

• SKU: 057130764H
• Mark: Audi
• Condition: Used
• OEM Part Number: 057130764H
• Substitutable numbers: 057130764H, 057 130 764 H
• Fuel type: Diesel
• Part type: Fuel Injector
• Category: Fuel Injectors

Purpose and Role in the Injection System

The presented fuel rail pressure sensor is dedicated to Audi A3 8P 2.0 TDI Diesel engines. Its task is to continuously measure fuel pressure in the common rail and transmit the signal to the engine control unit. Based on this data, the electronics select the fuel dose, injection timing, and operating strategy, which affects:

• stable idle speed and reduction of RPM fluctuations,
• proper acceleration dynamics without jerking or power loss,
• exhaust emission control through appropriate diesel fuel dosing.

Benefits of Using an Original Audi Sensor

In common rail systems, measurement repeatability and resistance to operating conditions are crucial. Using a sensor from the Audi group allows for maintaining the parameters specified by the vehicle manufacturer. In practice, this means:

• reliable fuel pressure readings across the entire engine load range,
• better cooperation with the factory control unit without the need for software adaptation,
• reduced risk of diagnostic errors related to incorrect sensor signals.

For the user, this translates into more predictable vehicle behavior, easier diagnosis of potential faults, and the ability to maintain factory engine operating parameters.

Component Condition and Installation Aspects

The offered sensor comes from the Injector Nozzles category, which emphasizes its close relationship with precise fuel dosing in a diesel engine. The item is used, making it a cost-effective solution while maintaining the original manufacturer's specifications. Installation requires maintaining cleanliness around the fuel rail and proper tightening to ensure system sealing and correct pressure readings.

• Direct installation in the fuel rail in place of the factory sensor,
• maintaining the correct tightening torque to avoid leaks,
• recommended inspection of the electrical system and connectors for corrosion and mechanical damage.

Injection System Diagnostics and Prevention

A malfunctioning fuel rail pressure sensor can cause starting problems, power loss, limp mode, or the appearance of engine control unit errors. In case of symptoms typical of injection system faults, it is worth consulting the guide Diesel Injector Faults – How to Recognize Them and What Neglecting Them Entails, which discusses symptoms, consequences, and basic diagnostics in diesel engines.

Related Products and System Expansion

If you are looking for other components from the Audi injector nozzles category for your vehicle, check out our dedicated offer: Audi injector nozzles. This will facilitate the selection of compatible fuel system components, which is particularly important for comprehensive diesel engine servicing.