RIGHT Lambda Oxygen Sensor, BEFORE Catalytic Converter. Porsche 958 Cayenne 3.6L 2010-17  ❭  958906262G

RIGHT Lambda Oxygen Sensor, BEFORE Catalytic Converter.
Maintain accurate air-fuel mixture control and dependable engine-management performance with this Porsche Right Lambda Oxygen Sensor, part number 958906262G. Designed for compatible Porsche applications, this sensor is specified for the RIGHT side and BEFORE the catalytic converter. 

Fits: 

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17  

Diagram Ref No 18

Also known as an upstream, pre-cat or O2 sensor, the lambda sensor measures the oxygen content remaining in the exhaust gases after combustion. This information is transmitted to the engine control unit (ECU), allowing it to determine whether the engine is operating with a rich or lean air-fuel mixture and make precise adjustments to fuel delivery.

Because this sensor is located before the catalytic converter, it plays a key role in closed-loop fuel control. Accurate sensor readings help the engine-management system maintain efficient combustion, responsive performance, appropriate fuel consumption and controlled exhaust emissions.

Lambda sensors operate in extremely demanding conditions, with constant exposure to high exhaust temperatures, vibration and combustion deposits. Over time, the sensing element may become contaminated or slow to respond, while the internal heater circuit, wiring or connector can also deteriorate.

Replacing a faulty sensor with the correct Porsche Right Lambda Oxygen Sensor 958906262G helps restore accurate exhaust monitoring and proper engine-management operation.

What This Product Does:

• Is designed for the RIGHT-side application.
• Is positioned BEFORE the catalytic converter.
• Measures oxygen levels within the exhaust gases.
• Sends exhaust oxygen information to the ECU.
• Helps determine whether the air-fuel mixture is rich or lean.
• Allows the ECU to make continuous fuel-delivery corrections.
• Supports accurate closed-loop mixture control.
• Helps maintain efficient combustion.
• Supports smooth throttle response and engine performance.
• Helps optimise fuel consumption.
• Contributes to correct exhaust emissions.
• Helps protect the catalytic converter from problems caused by incorrect fuelling.
• Replaces a worn, contaminated, damaged or failed lambda sensor.  

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Lambda or oxygen sensor-related diagnostic fault codes.
• Bank-specific rich or lean mixture fault codes.
• Increased fuel consumption.
• Rough or unstable idle.
• Hesitation during acceleration.
• Poor throttle response.
• Reduced engine performance.
• Engine running excessively rich or lean.
• Strong fuel smell from the exhaust.
• Increased exhaust emissions.
• Failed emissions testing where applicable.
• Intermittent engine-management warnings.
• Slow sensor response during diagnostic testing.
• Implausible or inconsistent lambda readings.
• Oxygen sensor heater circuit faults.
• Damaged sensor wiring or electrical connectors.  

Why Replacement Matters:

• The lambda sensor located before the catalytic converter provides important feedback that allows the ECU to continually fine-tune the engine's air-fuel mixture.
• A healthy sensor responds quickly to changing exhaust oxygen levels. As the sensor ages or becomes contaminated, its response may become slower or inaccurate. This can interfere with the ECU's ability to make precise fuel corrections.
• Poor mixture control may result in increased fuel consumption, reduced performance, unstable running and higher exhaust emissions.
• Incorrect fuelling can also affect catalytic converter life. If the engine operates excessively rich, unburned fuel can enter the exhaust system and cause the catalytic converter to operate at unusually high temperatures. Persistent problems may contribute to premature catalyst deterioration.
• A failed sensor can also cause the ECU to use substitute values or a fallback operating strategy. Although the engine may remain driveable, efficiency, emissions and performance can be compromised.
• Because 958906262G is specified for the right-side pre-catalytic converter position, correct sensor identification is particularly important when servicing engines with multiple exhaust banks and oxygen sensors.
• Replacing a defective sensor with the correct Porsche Right Lambda Oxygen Sensor 958906262G helps restore accurate mixture feedback, efficient combustion and dependable engine-management performance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

958906262G

The product you are viewing cross references to these numbers