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The OE MATCH RIGHT Lambda Oxygen Sensor, In Front Of Catalyst is a engine management and emissions control sensor, designed to monitor oxygen levels in the exhaust gases before they enter the catalytic converter on the right-hand exhaust bank. Also known as an upstream oxygen sensor or pre-catalyst lambda sensor, it is essential for maintaining the correct air-fuel mixture and ensuring efficient engine operation.
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Diagram Ref No 34
The sensor continuously analyses the oxygen content of exhaust gases and sends real-time data to the engine control unit (ECU). The ECU uses this information to precisely adjust fuel injection and combustion parameters, helping to maximise engine performance, fuel efficiency, and emissions control. Built to Bosch's exacting standards, this sensor delivers fast response times, accurate readings, and long-lasting reliability.
What This Product Does:
- Monitors oxygen levels in exhaust gases before the catalytic converter
- Provides real-time feedback to the engine control unit (ECU)
- Helps regulate the air-fuel mixture for optimum combustion efficiency
- Supports engine performance and throttle response
- Improves fuel economy through precise fuel management
- Reduces harmful emissions and supports catalytic converter efficiency
Symptoms Of Wear Or Failure:
- Check engine light illumination
- Poor fuel economy
- Rough idle or unstable engine operation
- Reduced engine performance and acceleration
- Engine hesitation or sluggish throttle response
- Increased exhaust emissions
- Failed emissions or MOT tests
- Oxygen sensor-related fault codes stored in the ECU
Why Replacement Matters:
- Restores accurate air-fuel ratio monitoring
- Improves fuel economy and combustion efficiency
- Enhances engine performance and throttle response
- Reduces harmful exhaust emissions
- Supports proper catalytic converter operation and longevity
- Prevents persistent engine management warning lights
- Helps maintain emissions compliance and MOT readiness
- Ensures reliable communication between the sensor and ECU for optimal engine operation
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A260618304
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