Description
The OX879 Oxygen Sensor is listed for the Great Wall V240 Super Luxury K2, covering model years 2009–2016 with a 2.4-litre inline four-cylinder, 16-valve engine. Designed for use in the vehicle’s exhaust and engine-management system, an oxygen sensor helps monitor the amount of oxygen remaining in the exhaust gases. This information allows the engine control unit (ECU) to assess combustion conditions and, where applicable, adjust the air-fuel mixture for efficient engine operation.
A functioning oxygen sensor is an important component of modern engine management. When the original sensor becomes contaminated, ages, or develops an electrical fault, the ECU may receive inaccurate or delayed readings. Replacing a confirmed faulty sensor with a correctly matched unit can help restore reliable exhaust feedback, support smooth engine performance, and reduce emissions when the underlying problem is sensor-related.
The OX879 listing identifies the Great Wall V240 Super Luxury K2 as its intended application. However, vehicle specifications and sensor configurations can vary by production date, market, engine code, and exhaust arrangement. Buyers should confirm the exact application and whether the sensor is intended for the upstream or downstream position before ordering.
Product Specifications
- Product name: Oxygen Sensor
- Listing code: OX879
- Vehicle make: Great Wall
- Vehicle model: V240 Super Luxury K2
- Listed model years: 2009–2016
- Listed body style: 4-door
- Listed engine capacity: 2.4 litres
- Listed engine configuration: Inline 4-cylinder (I4)
- Listed valve configuration: 16 valves
- Main function: Monitor exhaust oxygen levels and provide feedback to the engine management system
- Installation location: Depends on the original vehicle configuration and sensor type
- Compatibility: Must be verified against the vehicle’s VIN, engine details, original sensor, and connector
These specifications reflect the supplied product listing. They should be checked against the vehicle and the replacement part before purchase.
Key Features and Benefits
1. Exhaust Oxygen Monitoring
The oxygen sensor measures oxygen concentration in the exhaust stream and sends a corresponding electrical signal to the ECU. On systems using a conventional switching oxygen sensor, the signal helps the ECU determine whether the air-fuel mixture is richer or leaner than the target mixture. Other sensor designs operate differently, so the correct sensor type is essential.
For a compatible Great Wall V240, a properly operating sensor can help the engine management system respond appropriately to changing driving conditions, including acceleration, cruising, and idling.
2. Support for Fuel Management
Oxygen-sensor feedback is an important part of closed-loop fuel control on vehicles equipped with this system. Accurate readings help the ECU make appropriate fuel corrections, which can contribute to stable engine operation and efficient combustion.
A new sensor will not automatically improve fuel economy if the existing sensor is working correctly. However, replacing a sensor that has been confirmed faulty may help resolve fuel-control problems caused by incorrect exhaust feedback.
3. Assistance with Emissions Control
The oxygen sensor helps the engine management system maintain conditions that support the catalytic converter and emissions-control strategy. A sensor that responds correctly can contribute to proper air-fuel regulation and emissions performance.
If an emissions warning is present, the cause should be diagnosed before replacement. Wiring faults, exhaust leaks, ignition problems, fuel-delivery issues, and catalytic-converter faults can produce symptoms similar to a failing oxygen sensor.
4. Support for Consistent Engine Operation
An oxygen sensor that provides inaccurate or delayed readings can contribute to poor drivability on some vehicles. Where a defective sensor is responsible, replacing it with the correct part may help improve fuel-control response and overall engine consistency.
The actual result depends on the fault and the condition of the rest of the engine-management system.
Signs Your Oxygen Sensor May Need Replacement
An ageing or faulty oxygen sensor may produce one or more of the following symptoms:
- Check Engine light: The ECU may store a diagnostic trouble code relating to oxygen-sensor performance, heater operation, or circuit faults.
- Increased fuel consumption: Incorrect feedback can cause unsuitable fuel corrections under certain operating conditions.
- Rough or inconsistent idling: An inaccurate sensor signal may contribute to unstable engine operation.
- Poor acceleration or throttle response: Incorrect fuel control can affect drivability, although many other faults can cause similar symptoms.
- Elevated exhaust emissions: A sensor-related mixture-control problem may affect emissions performance.
- Unusual exhaust behaviour: Changes in exhaust smell or appearance may accompany engine-management problems, but these symptoms require proper diagnosis.
These signs do not prove that the oxygen sensor is defective. A diagnostic scan, live-data assessment, and inspection of the wiring and exhaust system can help identify the actual cause.
Why Correct Fitment Matters
Oxygen sensors can differ in connector shape, wire length, heating element design, sensing technology, thread dimensions, and electrical characteristics. Some vehicles also use multiple sensors in different exhaust positions. A part that physically fits the exhaust may still be electrically or functionally incorrect.
For the Great Wall V240 Super Luxury K2, confirm the following before ordering:
- The vehicle’s exact production year and engine code.
- The original oxygen sensor’s part number, where available.
- Whether the replacement is for the upstream sensor before the catalytic converter or the downstream sensor after it.
- The number of wires and the connector configuration.
- The vehicle’s market specification and emissions equipment.
The supplied title does not identify the sensor position or original equipment part number. Do not assume OX879 fits every sensor location across all V240 variants from 2009 to 2016 without verification.
Installation and Maintenance Recommendations
Oxygen-sensor replacement involves working around the exhaust system, which can become extremely hot. Allow the exhaust to cool completely before beginning work. Use suitable tools and follow the vehicle manufacturer’s service procedures.
Before installing the replacement:
- Scan the ECU for diagnostic trouble codes and record the results.
- Inspect the sensor wiring, connector, and surrounding harness for heat damage, corrosion, or loose connections.
- Check for exhaust leaks and other engine faults that may affect sensor readings.
- Compare the replacement sensor with the original unit to confirm the connector, thread, wiring, and overall configuration.
- Install the sensor using the correct procedure and tightening specification for the vehicle.
- Clear fault codes only after repairs are completed, then verify sensor operation and check whether the fault returns.
Avoid pulling or twisting the sensor wires during installation. Do not apply thread compounds unless the sensor manufacturer specifies that they are suitable; some replacement sensors are supplied with an appropriate coating already applied.
Product Suitability and Buyer Information
The OX879 Oxygen Sensor is listed for the Great Wall V240 Super Luxury K2 2.4L I4 16V, model years 2009–2016. It is intended for buyers seeking a replacement component for the vehicle’s exhaust oxygen-monitoring system.
Before purchasing, compare the part with the original sensor and confirm compatibility using the VIN or original equipment part number. If your vehicle has been modified or has a different engine or emissions configuration, additional checks may be necessary.
Conclusion
The OX879 Oxygen Sensor is a replacement option listed for the Great Wall V240 Super Luxury K2 2009–2016 with a 2.4-litre inline four-cylinder, 16-valve engine. A correctly matched and functioning oxygen sensor supports exhaust monitoring, engine-management feedback, and emissions control.
For the best result, verify the exact sensor position and vehicle compatibility before ordering. Correct diagnosis and installation are essential to ensure the replacement addresses the actual fault and works as intended with the vehicle’s engine-management system.






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