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Speed / Reference / Knock Sensors
By OE Match
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928
Porsche 924S
Porsche 944
Porsche 968
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94460611500
The product you are viewing cross references to these numbers
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Fits:
Porsche 944 S2 1987-91
Porsche 944 Turbo / Turbo S 2.5L 1986-91
Porsche 968 1992-95
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94460614500
The product you are viewing cross references to these numbers
OEMatch Speed / Reference / Knock Sensors — Fit, Function, Confidence
Carefully selected for Porsche models, these sensors provide the signal inputs the engine control system needs to manage ignition, fuelling and detonation control. The following information explains the different types, common failure modes and what to consider when replacing them on Porsche vehicles.
Available Types
- Speed sensors (wheel and crank speed)
- Reference sensors (crankshaft and camshaft position)
- Knock sensors (detonation monitoring)
Understanding OEMatch Speed / Reference / Knock Sensors
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original speed / reference / knock sensors. OE (Original Equipment) refers to parts matching original specifications for the speed / reference / knock sensors and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM speed / reference / knock sensors engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Speed sensors report rotational speed for engine or transmission management; reference sensors provide crank or cam position data used to time injection and ignition; knock sensors detect detonation so the ECU can retard timing to protect the engine.
Benefits Include
- Consistent timing and ignition control to support smooth running
- Improved responsiveness through accurate signal input
- Reduced risk of detonation-related damage when a knock sensor is functioning correctly
Why Speed / Reference / Knock Sensors Wear and Fail
- Thermal stress from proximity to exhaust and hot engine components
- Electrical faults caused by connector corrosion, wiring damage or moisture ingress
- Mechanical damage or contamination to sensing elements from oil, debris or impact
The Importance of Replacing with OEMatch Speed / Reference / Knock Sensors
Replacing worn or damaged sensors restores accurate data flow to the ECU, which helps maintain correct ignition timing, fuelling and detonation control on Porsche engines. Timely replacement can prevent drivability issues such as rough idle, misfire or loss of power and supports consistent fuel economy and emissions behaviour across model ranges.
Advantages
- Direct-fit replacements engineered to match original dimensions and tolerances
- Signal characteristics matched to factory expectations for consistent ECU behaviour
- Robust connector and sealing details to resist heat and contamination
Support & Advice
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified.
