Land Rover Discovery Sport L550 Air Pressure MAP Sensor 2.0 G4D3-BF468-AA

Land Rover Discovery Sport L550 MAP Sensor 2.0 G4D3-BF468-AA is a component from the Air and Fuel Intake Sensors group, responsible for precise measurement of manifold pressure in the 2.0 gasoline engine. It enables the engine control unit to accurately dose fuel and control boost pressure, which translates to stable engine operation and predictable throttle response. This solution is intended for users who want to restore the correct intake system parameters in their Discovery Sport.

Specifications and technical data

• SKU: LR090375
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR090375
• Substitutable numbers: LR090375, G4D3BF468AA, G4D3-BF468-AA, 0261230426, 0 261 230 426
• Category: Air Intake & Fuel Sensors

Function and Role of the MAP Sensor in Discovery Sport L550

The MAP sensor in this Land Rover model is responsible for measuring the current intake manifold pressure and transmitting the signal to the engine control unit. Based on this data, the ECU adjusts fuel injection, ignition timing, and turbocharging strategy, which helps maintain the correct air-fuel mixture under various load conditions. A functional sensor reduces the risk of power loss, jerky acceleration, or increased fuel consumption.

Benefits of Using an Original Land Rover Sensor

Using a sensor from the group of original Land Rover components ensures signal characteristics match the factory maps in the engine control unit. Thanks to this:

• correct engine dynamics are maintained across the entire RPM range,
• the control unit can effectively manage the mixture and reduce emissions,
• the risk of errors related to boost pressure and mixture composition is reduced.

For the user, this means predictable vehicle behavior, stable idle speed, and improved engine smoothness, especially in urban conditions and during dynamic acceleration.

Installation and Operational Characteristics

The sensor is designed as a component for direct integration with the 2.0 engine intake system in the Land Rover Discovery Sport L550. Its construction, integrated with a measuring port and electrical connector, allows for installation in the factory-specified location without the need for wiring modifications. Proper seating of the sensor in the manifold and correct connection of the wiring harness enable quick restoration of accurate pressure readings.

The component comes from a used vehicle, which means it has been previously used in real operating conditions. Such components are often chosen as an economical alternative to new parts, while maintaining compatibility with the vehicle's factory specifications.

Application in the Air and Fuel Intake System

As part of the Air and Fuel Intake Sensors group, this MAP sensor works in conjunction with the throttle body, boost system, and fuel injection system. A correct signal from the sensor is crucial for:

• maintaining appropriate boost pressure across the entire load range,
• preventing overly lean or rich mixtures,
• reducing the risk of the engine entering limp mode due to incorrect pressure readings.

Replacing a faulty sensor with a functional one helps eliminate common symptoms associated with incorrect measurements, such as power loss, fluctuating idle speed, or the illuminated engine warning light.

Technical Support and Selection of Used Electronics

When selecting a used MAP sensor for a specific engine version of the Discovery Sport, it is important to pay attention to compatibility with the engine control system and factory parameters. Manufacturer markings, as well as catalog data assigned to a specific engine variant, can be helpful. If you want to better understand how to safely choose used modules and sensors, check out the guide Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?, which discusses OEM selection, compatibility issues, and practical installation tips.

If you are planning a comprehensive repair or upgrade of the engine area in your Land Rover and need other components from the same group, such as air temperature sensors, mass airflow sensors, or additional pressure sensors, check the available parts in the Land Rover Air and Fuel Intake Sensors category.