Description
The OX871 Oxygen Sensor is listed as a replacement oxygen sensor for selected Holden Barina TK models from 2005 to 2011, covering the listed SA086, SA486, SF086, SF486, SA696 and SF696 identifiers. The supplied application specifies a 1.6-litre inline four-cylinder, 16-valve engine and a two- to four-door body configuration.
An oxygen sensor, also known as a lambda sensor, is an important component of a compatible vehicle’s engine-management and exhaust-emissions systems. It measures the oxygen content in exhaust gases and sends information to the engine control unit (ECU). The ECU uses this feedback, where supported by the original engine-management system, to help regulate the air-fuel mixture.
When an oxygen sensor becomes contaminated, deteriorates with age or develops an electrical fault, it may provide inaccurate or delayed readings. This can affect fuel-control performance and may trigger an engine warning light. If testing confirms that the original sensor is faulty, replacing it with a correctly matched unit may help restore reliable exhaust feedback.
The OX871 listing provides a reference for Holden Barina owners seeking a replacement sensor. However, sensor specifications can vary by production date, engine code, emissions equipment and installation position. Confirm the exact application before ordering.
Product Specifications
- Product name: Oxygen Sensor
- Product code: OX871
- Vehicle manufacturer: Holden
- Vehicle model: Barina TK
- Listed identifiers: SA086, SA486, SF086, SF486, SA696 and SF696
- Listed model years: 2005–2011
- Listed body configuration: 2–4 doors
- Listed engine capacity: 1.6 litres
- Listed engine configuration: Inline four-cylinder (I4)
- Listed valve configuration: 16 valves
- Primary function: Monitor oxygen levels in exhaust gases and provide feedback to the engine-management system
- Sensor position: Must be verified against the original vehicle configuration
- Compatibility: Confirm using the VIN, engine code and original equipment part number
The specifications above are based on the supplied listing. The exact fitment should be checked against the vehicle’s original equipment details.
Key Features and Benefits
1. Exhaust Oxygen Monitoring
The oxygen sensor measures the oxygen content in the exhaust stream and converts that information into a signal for the ECU. On compatible vehicles operating in closed-loop mode, this feedback helps the engine-management system assess combustion conditions and adjust fuel delivery as required.
For a compatible Holden Barina TK 1.6L, accurate oxygen-sensor feedback helps the ECU respond to changing engine conditions, including idling, normal cruising and acceleration. Using the correct sensor specification is essential for dependable readings.
2. Support for Fuel Management
Oxygen-sensor feedback is one of the inputs used by the engine-management system to regulate the air-fuel mixture. If the original sensor becomes slow or provides incorrect readings, fuel corrections may become less effective and can contribute to increased fuel consumption or inconsistent engine operation.
Replacing a sensor that has been confirmed faulty may help restore normal fuel-control behaviour. However, fuel economy also depends on driving style, ignition components, fuel delivery, engine condition, tyre pressure and routine maintenance. Replacing the sensor alone cannot guarantee a particular improvement in fuel consumption.
3. Assistance with Emissions Control
On vehicles equipped with the appropriate catalytic converter and engine-management system, the oxygen sensor helps maintain conditions that support emissions control. Accurate sensor information assists the ECU in managing the air-fuel mixture and supports the intended operation of the emissions system.
If your Holden Barina fails an emissions test or displays an engine warning light, an oxygen-sensor fault is one possible cause. Exhaust leaks, damaged wiring, ignition faults, fuel-system problems and catalytic-converter deterioration can cause similar symptoms. Diagnosis is recommended before replacing parts.
4. Support for Consistent Engine Performance
A deteriorating oxygen sensor may affect fuel-control accuracy. Depending on the fault, the driver may notice rough idling, hesitation, inconsistent acceleration or changes in fuel consumption.
If a faulty sensor is responsible, fitting the correct replacement may help the engine-management system receive more reliable exhaust information. If the symptoms remain after replacement, other mechanical or electrical faults should be investigated.
5. A Practical Replacement Option
The OX871 product code helps identify the oxygen sensor listed for selected Holden Barina TK applications. Matching the replacement to the original equipment specification is important because oxygen sensors can differ in connector design, wire count, wire length, heater configuration, thread dimensions and sensing technology.
A sensor that physically fits the exhaust is not necessarily electrically compatible. Buyers should compare the replacement with the original sensor and verify the part number before installation.
Common Symptoms of a Faulty Oxygen Sensor
A failing oxygen sensor may be associated with one or more of the following symptoms:
- Check Engine light: The ECU may store a diagnostic trouble code relating to sensor response, heater operation or an electrical circuit.
- Increased fuel consumption: Incorrect sensor feedback may contribute to unsuitable fuel corrections.
- Rough or unstable idling: Air-fuel control problems can affect engine smoothness.
- Hesitation during acceleration: Incorrect fuel adjustments may contribute to inconsistent engine response.
- Elevated exhaust emissions: A sensor-related fault can affect emissions performance.
- Failed emissions testing: The sensor may be involved, although other engine or exhaust faults can produce similar results.
These symptoms do not automatically mean the oxygen sensor needs replacement. A diagnostic scan, inspection of the wiring and connectors, and assessment of live sensor data can help identify the underlying problem.
Why Correct Fitment Matters
Oxygen sensors are not universally interchangeable. Depending on the vehicle’s original configuration, there may be an upstream sensor before the catalytic converter and a downstream sensor after it. These sensors can have different functions and may use different specifications.
Before purchasing OX871, verify:
- The exact Holden Barina model and production date.
- The engine code and engine specification.
- The original oxygen-sensor part number.
- Whether the required sensor is upstream or downstream.
- The connector shape and number of wires.
- The vehicle’s original emissions configuration.
The supplied product title does not specify the sensor position or original equipment part number. Therefore, compatibility with every listed identifier and sensor location should not be assumed without confirmation.
Installation and Maintenance Recommendations
Oxygen sensors are fitted to the exhaust system, where temperatures can become extremely high. Allow the exhaust to cool completely before beginning work and follow the vehicle manufacturer’s service instructions.
Recommended steps include:
- Read the ECU fault codes before removing the original sensor.
- Inspect the wiring harness and connector for corrosion, damaged insulation or heat exposure.
- Check for exhaust leaks that could affect sensor readings.
- Compare the replacement with the original sensor before installation.
- Use suitable tools and follow the correct tightening specification.
- Avoid twisting, pulling or stretching the sensor wires.
- After installation, verify sensor operation and check whether the original fault returns.
If the warning light remains on or the vehicle continues to run poorly, further diagnosis may be required.
Fitment Verification and Buyer Information
The OX871 Oxygen Sensor is listed for selected Holden Barina TK models from 2005 to 2011 with a 1.6-litre I4 16V engine. Before ordering, confirm the VIN, original equipment part number, engine details and required sensor position. This is particularly important where multiple variants are included in a single listing.
Conclusion
The OX871 Oxygen Sensor is a replacement option listed for selected Holden Barina TK applications from 2005–2011. A correctly matched and functioning sensor supports exhaust oxygen monitoring, engine-management feedback, fuel control and emissions performance.
For dependable results, verify the exact vehicle application and sensor position before purchasing. Correct diagnosis and careful installation help ensure the replacement is suitable for the vehicle and addresses the actual fault.
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