Ford Transit Connect Mk1 1.8 TDCI Lambda Probe NOX Sensor Control KK31-5L248-BA

Ford Transit Connect Mk1 1.8 TDCI Lambda Probe NOX Sensor Control is a component from the Lambda probes and O2 sensors category, designed for Ford diesel systems. This is a used, original Ford component that allows for the restoration of proper exhaust gas composition control and stable operation of the diesel engine.

Specifications and technical data

• SKU: KK31-5L248-BA
• Mark: Ford
• Condition: Used
• OEM Part Number: KK31-5L248-BA
• Substitutable numbers: KK315L248BA, KK31-5L248-BA, A3C00158100
• Fuel type: Diesel
• Category: Oxygen Sensors

Purpose and function in the exhaust system

The presented lambda probe / NOX sensor control module is dedicated to the 1.8 TDCI unit in the first-generation Ford Transit Connect. It is responsible for precise monitoring of the mixture composition in the diesel engine, working in conjunction with the control electronics and the exhaust system. A properly functioning element of this type supports the maintenance of appropriate combustion parameters, which translates into stable engine operation and correct response to load.

Benefits of using an original Ford component

Using an original Ford component in the exhaust control area allows for the preservation of the factory engine operating characteristics. Compatibility with the vehicle's installation reduces the risk of communication errors with the ECU and diagnostic problems. A used OEM element is also a reasonable compromise between repair costs and quality maintenance, especially in the case of specialized sensors and controllers in diesel engines.

A significant advantage is also that the part comes from the same design group for which the appropriate maps and control strategies were intended. Thanks to this, the exhaust emission control system can operate within parameters close to factory settings, which facilitates subsequent computer diagnostics and the interpretation of error codes.

Application in diesel engines

In diesel units, precise monitoring of exhaust gas composition is crucial for protecting exhaust system components, such as filters and catalytic converters. The described element works with the engine control system, helping to maintain the correct air-fuel ratio under various load conditions. This makes it possible to reduce excessive nitrogen oxide emissions and maintain stable idle speeds.

In practice, this means that after proper installation and adaptation, the lambda probe / NOX sensor controller can contribute to reducing the risk of the unit entering limp mode, as well as easier passing of periodic technical inspections related to exhaust emissions.

Selection, installation, and service aspects

When selecting this type of element for the Ford Transit Connect Mk1 1.8 TDCI, it is crucial to verify compatibility with the specific engine version and the vehicle's electrical installation. Manufacturer markings and available interchangeable numbers are helpful in this regard, allowing for confirmation of compatibility with a given car model. Correct reference matching minimizes the risk of bus communication problems and engine control unit errors.

During installation, it is worth paying attention to the correct routing of the wiring harness, the condition of the connectors, and the tightness of connections within the exhaust system. After installation, it is recommended to perform computer diagnostics, clear stored errors, and verify current parameters to confirm that the new element is working with the ECU as expected.

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

Used electronic component – an informed choice

In the case of advanced electronic components used in diesel systems, choosing a used OEM element is often a cost-effective service solution. It allows for reducing repair costs while maintaining the original manufacturer's specifications. To better understand when such a solution makes sense and what to look for when purchasing, it is worth reading the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?