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Lambda Sensor, AFTER Catalytic Converter. Porsche 957 Cayenne 4.8L S / GTS / TURBO / TURBO S 2007-10 - 958906262Q
958906262Q/2
Vehicle Group
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Information
Lambda Sensor, AFTER Catalytic Converter.
Diagram Ref No 21
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
958906262Q
The product you are viewing cross references to these numbers
The OE MATCH Lambda Sensor, After Catalytic Converter is a critical emissions control and engine management component designed to monitor the oxygen content of exhaust gases after they have passed through the catalytic converter. Also known as a post-catalyst oxygen sensor, it provides feedback to the engine control unit (ECU) regarding catalytic converter efficiency and overall emissions system performance.
Sold Each.
x2 Required Per Car.
Fits:
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Diagram Ref No 21
This OE MATCH lambda sensor helps ensure the vehicle meets emissions standards while allowing the ECU to continuously monitor and optimise engine operation. By accurately measuring oxygen levels in the exhaust stream, it supports efficient emissions control and helps identify catalytic converter performance issues before they become more serious.
What This Product Does:
- Monitors oxygen levels in exhaust gases after the catalytic converter
- Measures catalytic converter efficiency and performance
- Provides real-time feedback to the engine control unit (ECU)
- Supports emissions control system monitoring
- Helps maintain compliance with emissions regulations
- Assists the ECU in diagnosing exhaust and catalyst-related faults
Symptoms Of Wear Or Failure:
- Check engine light illumination
- Catalytic converter efficiency fault codes
- Failed emissions or MOT tests
- Increased exhaust emissions
- Reduced fuel economy in some cases
- Engine management warning messages
- Oxygen sensor-related fault codes
- Incorrect catalytic converter monitoring data
Why Replacement Matters:
- Restores accurate exhaust oxygen monitoring
- Ensures proper catalytic converter efficiency monitoring
- Helps maintain emissions compliance and MOT readiness
- Prevents persistent engine management warning lights
- Supports efficient engine management system operation
- Allows accurate diagnosis of catalyst and exhaust system performance
- Reduces the risk of increased emissions and environmental impact
- Maintains long-term reliability of the emissions control system
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
958906262Q
958906262Q
95560617800
The product you are viewing cross references to these numbers
Price: £75.00
In stock
Related products
Vehicle Group
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Information
Blanking Plug For Oxygen Sensor Hole.
Securely seal an unused oxygen sensor port with this OE Match Blanking Plug for Oxygen Sensor Hole. Designed for compatible exhaust applications, this plug is used when an oxygen (lambda) sensor mounting hole is present but a sensor is not required for the particular vehicle, exhaust configuration, testing setup or application.
M 18 x 1,5 x 18
23mm in length
Oxygen sensor ports are threaded openings in the exhaust system that normally accommodate a lambda sensor. When the port is not being used, it must be properly sealed. Leaving the opening exposed can allow hot exhaust gases to escape and may permit moisture and contamination to enter the exhaust system.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
333660211
The product you are viewing cross references to these numbers
Securely seal an unused oxygen sensor port with this OE Match Blanking Plug for Oxygen Sensor Hole. Designed for compatible exhaust applications, this plug is used when an oxygen (lambda) sensor mounting hole is present but a sensor is not required for the particular vehicle, exhaust configuration, testing setup or application.
M 18 x 1,5 x 18
23mm in length
Oxygen sensor ports are threaded openings in the exhaust system that normally accommodate a lambda sensor. When the port is not being used, it must be properly sealed. Leaving the opening exposed can allow hot exhaust gases to escape and may permit moisture and contamination to enter the exhaust system.
What This Product Does:
- Seals an unused oxygen or lambda sensor mounting hole.
- Prevents exhaust gases escaping through an unused sensor port.
- Helps maintain the integrity of the exhaust system.
- Protects the threaded sensor opening from dirt and contamination.
- Helps reduce moisture entering through an unused port.
- Allows an exhaust component with an oxygen sensor boss to be used where a sensor is not required.
- Provides a removable solution if an oxygen sensor is required later.
- Replaces a missing, damaged or corroded blanking plug.
- Provides an OE-style solution for compatible exhaust applications.
Symptoms Of Wear Or Failure:
- Exhaust gases leaking around the plug.
- A ticking or blowing noise from the oxygen sensor port.
- Black soot deposits around the plug or threaded opening.
- A strong exhaust smell near the affected area.
- The plug has become loose.
- Visible corrosion or deterioration.
- Damaged or stripped plug threads.
- A plug that can no longer be securely tightened.
- The original blanking plug is missing.
- An oxygen sensor has been removed and the port remains open.
- Heat or exhaust staining around the sensor boss.
Why Replacement Matters:
- An unused oxygen sensor hole should never be left open during normal engine operation. Exhaust gases are extremely hot and can escape through the opening at high velocity, potentially damaging nearby components and creating excessive noise.
- An exhaust leak can also affect the correct operation of the exhaust system. Depending on the location of the unused port and the vehicle's configuration, unwanted air entering the exhaust may also interfere with exhaust-gas measurements or diagnostic testing.
- The threaded sensor boss itself can deteriorate if left exposed. Dirt, moisture and corrosion may damage the threads, making installation of a future oxygen sensor more difficult or requiring repair of the sensor mounting point.
- A loose or damaged plug can produce similar problems. Soot deposits around the port are often an indication that combustion gases are escaping past the sealing surface or threads.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
333660211
333660211
The product you are viewing cross references to these numbers
Price: £4.95
In stock
Vehicle Group
- Porsche 911 1978-1983 3.0L / SC
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 928 4.5L 1978-82
Information
Lambda oxygen sensor for USA spec cars. Requires the wire to be crimped with original sensor.
Fits:
Porsche 911 1978-83 SC
Porsche 924 1980-85 (including Turbo)
Porsche 928 1980-82 4.5L
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Failure Symptoms:
Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
Driveability problems, such as engine surging or hesitation.
High hydrocarbon emissions, failing an emissions inspection.
The engine warning light may be on or service flag displayed.
The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
Test and/or replace every 30,000 miles.
Perform periodic emission checks.
Watch for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160612300
The product you are viewing cross references to these numbers
Fits:
Porsche 911 1978-83 SC
Porsche 924 1980-85 (including Turbo)
Porsche 928 1980-82 4.5L
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Failure Symptoms:
Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
Driveability problems, such as engine surging or hesitation.
High hydrocarbon emissions, failing an emissions inspection.
The engine warning light may be on or service flag displayed.
The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
Test and/or replace every 30,000 miles.
Perform periodic emission checks.
Watch for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160612300
91160612300
0258986501
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Price: £49.50
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