Description
The OX905 Oxygen Sensor is listed as a replacement option for selected Nissan Micra vehicles associated with the STK13 and FBUK13 model codes, covering the listed production years 2010–2017 and a 1.2-litre, three-cylinder, 12-valve engine configuration. The oxygen sensor is an essential component of the engine management and exhaust emissions control systems. It monitors the oxygen content in the exhaust gas and sends information to the engine control unit (ECU), helping the system regulate combustion and emissions.
The Nissan Micra is a compact passenger car designed for convenient city driving, practical everyday transport and efficient operation. To maintain the intended performance of its petrol engine, the vehicle relies on accurate information from several electronic sensors. A correctly matched oxygen sensor helps the ECU evaluate exhaust conditions and make appropriate adjustments to the air-fuel mixture where required.
The OX905 product code provides a useful reference for customers looking for a replacement oxygen sensor for a compatible Nissan Micra. However, exact compatibility can vary according to engine code, production date, market specification and exhaust configuration. Always verify the original part number and sensor position before ordering.
Key Product Features
- Product Code: OX905
- Product Type: Oxygen Sensor
- Vehicle Make: Nissan
- Vehicle Model: Micra
- Listed Model Codes: STK13 – FBUK13
- Listed Production Years: 2010–2017
- Listed Engine Capacity: 1.2 litres
- Listed Engine Configuration: Inline three-cylinder (I3)
- Listed Valve Configuration: 12 valves
- Primary Function: Exhaust oxygen monitoring and engine management feedback
- Replacement Purpose: Replacing a worn or faulty sensor when the replacement specifications match the original component
The details above reflect the supplied application listing and do not independently confirm compatibility with every Nissan Micra variant produced during the stated period.
What Does an Oxygen Sensor Do?
An oxygen sensor measures the amount of oxygen remaining in the exhaust gases after combustion. This information helps the ECU assess whether the engine is operating with the appropriate air-fuel mixture. The ECU combines oxygen sensor readings with information from other components, such as airflow, engine temperature and throttle-related sensors, to manage engine operation.
When the sensor is functioning correctly, its readings support fuel control, emissions management and efficient combustion. If the sensor becomes slow to respond, produces inaccurate readings or stops working, the ECU may not receive the information it needs to manage the engine properly.
Depending on the vehicle’s exhaust system, there may be an upstream oxygen sensor before the catalytic converter and a downstream sensor after it. The upstream sensor commonly contributes to fuel mixture control, while the downstream sensor generally helps monitor catalytic converter performance. These sensors may have different specifications and are not necessarily interchangeable.
For this reason, it is important to identify the exact sensor location required for the Nissan Micra before purchasing OX905.
Common Signs of a Faulty Oxygen Sensor
Oxygen sensors operate under demanding conditions, including high exhaust temperatures, vibration and exposure to exhaust contaminants. Over time, the sensor element, heater circuit, connector or wiring can deteriorate.
Possible symptoms of an oxygen sensor fault include:
- An illuminated check-engine warning light.
- Reduced fuel economy in some driving conditions.
- Increased exhaust emissions.
- Irregular engine operation or inconsistent response.
- Changes in idle quality in certain circumstances.
- Diagnostic trouble codes relating to oxygen sensor performance.
- Fault codes associated with the sensor’s heater circuit.
- Difficulty meeting an emissions inspection requirement where applicable.
These symptoms do not automatically mean the oxygen sensor has failed. Similar problems can result from an exhaust leak, damaged wiring, an intake air leak, ignition faults, fuel delivery issues or a catalytic converter problem. Proper diagnosis should be completed before replacing the sensor.
Benefits of Replacing a Faulty Oxygen Sensor
A correctly specified replacement sensor can help restore reliable exhaust monitoring when the original component has been confirmed as faulty.
- Reliable engine feedback: The sensor provides exhaust oxygen information to the ECU, helping the engine management system respond to changing operating conditions.
- Support for fuel efficiency: Accurate oxygen sensor feedback can help the ECU manage the air-fuel mixture appropriately. Actual fuel consumption also depends on driving habits, maintenance and overall vehicle condition.
- Emissions control support: The sensor contributes to the vehicle’s intended exhaust emissions control strategy.
- Potential resolution of sensor-related warning lights: Replacing a faulty sensor may resolve relevant diagnostic trouble codes when the sensor itself is the cause.
- Dependable vehicle maintenance: Replacing a worn or damaged component can help restore the intended operation of the engine management system.
- Correct replacement identification: Matching the original part number, electrical connector and sensor location helps reduce the risk of purchasing an incompatible component.
A replacement oxygen sensor cannot guarantee more power, lower fuel consumption or the elimination of all engine warning lights. The result depends on the condition of the original sensor and whether other faults are present.
Compatibility Checks for Nissan Micra STK13 – FBUK13
Before ordering OX905, confirm that the sensor matches the specific vehicle. The Nissan Micra was offered in different configurations across markets, and a model-year range alone may not establish exact fitment.
Check the following details:
- Vehicle identification number (VIN) and production date.
- Exact engine code and engine variant.
- Chassis or model designation.
- Original oxygen sensor part number, if available.
- Required sensor position: upstream or downstream.
- Electrical connector shape and pin arrangement.
- Cable length, thread size and physical sensor design.
- Heater-circuit and electrical specifications.
- Market-specific emissions equipment.
The supplied listing identifies a 1.2-litre, three-cylinder, 12-valve application. Confirm these details against the vehicle’s documentation and a reliable parts catalogue. If possible, compare the original sensor with the replacement specification before installation.
Installation Recommendations
Oxygen sensor replacement involves working near the exhaust system, which can become extremely hot. Allow the exhaust to cool fully before beginning work.
- Scan the vehicle for diagnostic trouble codes and record the results.
- Identify the faulty sensor and confirm its position in the exhaust system.
- Switch off the engine and follow the vehicle manufacturer’s safety procedures.
- Disconnect the electrical connector carefully, avoiding damage to the wiring or locking tabs.
- Remove the old sensor with a suitable oxygen sensor socket or removal tool.
- Compare the old component with OX905, checking the connector, cable length, threads and physical design.
- Install the replacement according to the manufacturer’s instructions and specified torque.
- Follow the sensor manufacturer’s guidance regarding thread treatment; do not add lubricant or anti-seize compound unless permitted.
- Route the cable away from hot exhaust components and moving parts.
- Reconnect the sensor, check the installation and verify operation with a suitable diagnostic scan tool.
If the sensor is difficult to access or the cause of the fault is uncertain, professional installation is recommended.
Maintenance and Troubleshooting
Regular servicing can help identify exhaust leaks, damaged wiring and engine problems that may affect oxygen sensor readings. If a warning light remains illuminated after replacement, the fault codes should be checked again rather than assuming the new sensor is defective.
A technician may inspect wiring continuity, heater operation, exhaust leaks, sensor response and related engine management components. Identifying the underlying cause can help prevent repeated repairs and unnecessary replacement costs.
Conclusion
The OX905 Oxygen Sensor is listed for selected Nissan Micra STK13 and FBUK13 applications from 2010 to 2017, with a listed 1.2-litre I3 12-valve engine configuration. A correctly matched oxygen sensor supports exhaust monitoring, engine management feedback and emissions control.
For reliable fitment, verify the VIN, exact engine code, original part number, sensor position and connector specification before ordering. Careful identification and correct installation help ensure that the replacement is suitable for the vehicle and performs as intended.
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