Land Rover Discovery L550 Nox Oxygen Sensor 2.0 Diesel GH22-5J299-AD

The Land Rover Discovery L550 Lambda Nox Sensor 2.0 Diesel GH22-5J299-AD is a specialized component of the exhaust control system, designed for the diesel engines of this model. It is responsible for precise measurement of exhaust gas composition and nitrogen oxide content, enabling the engine control unit to ensure stable engine operation and compliance with emission standards. This is a dedicated solution for users who expect consistency of parameters with the vehicle's factory configuration.

Specifications and technical data

• SKU: GH22-5J299-AD
• Mark: Land Rover
• Condition: Used
• OEM Part Number: GH22-5J299-AD
• Substitutable numbers: GH22-5J299-AD, LR093669
• Fuel type: Diesel
• Rim width: 5
• Category: Oxygen Sensors

Purpose and Function in the Exhaust System

The Lambda Nox Sensor in the Land Rover Discovery L550 operates within the exhaust gas stream of the diesel engine, monitoring the mixture composition and nitrogen oxide levels. Based on its signal, the engine control system adjusts fuel injection and the operation of exhaust aftertreatment systems, which translates to stable diesel engine performance, reduced smoke, and maintained efficiency of emission reduction components.

A correctly functioning sensor from this group is crucial for maintaining proper engine operating parameters, minimizing the risk of entering limp mode, and sustaining correct fuel consumption values in daily use.

Benefits of Using a Dedicated Lambda Nox Sensor

Using a component tailored to a specific version of the Discovery L550 with a diesel engine ensures:

• signal consistency with the engine control unit's factory calibration,
• proper interaction with the exhaust aftertreatment system,
• reduced risk of errors related to emissions and mixture composition,
• maintenance of predictable engine performance characteristics.

For the user, this means more predictable vehicle behavior, better response to load, and fewer costly service interventions resulting from incorrect exhaust measurement system operation.

Technical Characteristics and Compatibility

The presented component belongs to the Lambda Sensors and O2 Sensors group, meaning it is designed to operate in a demanding environment of high temperatures and variable exhaust gas composition. The construction of the Lambda Nox Sensor is adapted to the specifics of a diesel engine, where monitoring both oxygen content and nitrogen oxides in the exhaust stream is important.

It is always advisable to verify the correct sensor selection for a specific vehicle configuration based on manufacturer data and technical markings to ensure full compatibility with the electrical system and control unit software.

Component Condition and Practical Installation Tips

The offered Lambda Nox Sensor is from the secondary market, allowing for an economical restoration of the exhaust control system's functionality while maintaining compliance with factory solutions. Before installation, it is recommended to inspect the electrical system, connectors, and the overall condition of the exhaust system to ensure the newly installed sensor operates under stable conditions.

The replacement of this type of component should be carried out following service procedures, including proper tightening torque and leak checks. After installation, it is advisable to perform adaptation and clear any error codes from the control unit's memory to fully utilize the potential of the newly installed component.

If you are planning a comprehensive repair or upgrade of the exhaust and emission control system in your Land Rover and need other parts from the same group, such as oxygen sensors, Nox sensors, or additional exhaust gas sensors, check the available parts in the Land Rover Lambda Sensors and O2 Sensors category.

For users considering the installation of used parts, a guide describing the selection, compatibility, and practical aspects of installing sensors and electronic modules will be useful – detailed information can be found in the article Used Automotive Electronics Onboard – Why Choose Second-Hand ECUs and Sensors?.