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Impulse / speed reference sensor. Porsche 911 84-89 - 91160621502
91160621502/2
Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Information
Impulse / speed reference sensor - also known are Engine Crankshaft Position Sensor
Please note there are 2 per car, Price is Each
Fits:
Porsche 911 1984-1986 3.2L
Porsche 911 1987-1989 3.2L G50
Porsche 911 1978-1989 3.3L Turbo (930)
The engine crankshaft position sensor (CPS) is a critical component that monitors the crankshaft’s position and rotational speed. It sends this data to the engine control unit (ECU), allowing precise control of fuel injection, ignition timing, and other key engine functions. Without accurate input from the CPS, the ECU cannot properly synchronize spark or fuel delivery—leading to poor performance or even a no-start condition.
Crankshaft sensors typically use magnetic or Hall-effect technology:
Magnetic sensors generate a signal with a coil and magnet as the crankshaft rotates. Hall-effect sensors detect changes in the magnetic field using a semiconductor for highly accurate readings.
Depending on the engine design, the CPS is usually located near the crankshaft pulley, harmonic balancer, flywheel, or transmission. It reads notches or teeth on a tone wheel to create a signal the ECU can interpret.
Over time, heat, vibration, and contaminants (oil, dirt, or metal shavings) can cause the sensor to fail. When this happens, common symptoms include engine stalling, rough idling, misfires, or a no-start condition.
Common Symptoms of a Failing Crankshaft Position Sensor
No Start Condition – If the ECU doesn’t receive a proper signal, the engine won’t start.
Stalling When Warm – The sensor may fail when the engine reaches operating temperature, causing unexpected stalling.
Erratic or Dead Tachometer – In some vehicles, a faulty CPS can cause the tachometer to behave irregularly.
Check Engine Code P0335 – A failed internal circuit may trigger this code, though not always.
Poor Performance at Certain RPMs – Timing issues can cause hesitation, especially at idle or higher RPMs.
Multiple Cylinder Misfires – Unlike a single bad coil or injector, CPS failure can cause misfires across all cylinders.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160621502
The product you are viewing cross references to these numbers
Please note there are 2 per car, Price is Each
Fits:
Porsche 911 1984-1986 3.2L
Porsche 911 1987-1989 3.2L G50
Porsche 911 1978-1989 3.3L Turbo (930)
The engine crankshaft position sensor (CPS) is a critical component that monitors the crankshaft’s position and rotational speed. It sends this data to the engine control unit (ECU), allowing precise control of fuel injection, ignition timing, and other key engine functions. Without accurate input from the CPS, the ECU cannot properly synchronize spark or fuel delivery—leading to poor performance or even a no-start condition.
Crankshaft sensors typically use magnetic or Hall-effect technology:
Magnetic sensors generate a signal with a coil and magnet as the crankshaft rotates. Hall-effect sensors detect changes in the magnetic field using a semiconductor for highly accurate readings.
Depending on the engine design, the CPS is usually located near the crankshaft pulley, harmonic balancer, flywheel, or transmission. It reads notches or teeth on a tone wheel to create a signal the ECU can interpret.
Over time, heat, vibration, and contaminants (oil, dirt, or metal shavings) can cause the sensor to fail. When this happens, common symptoms include engine stalling, rough idling, misfires, or a no-start condition.
Common Symptoms of a Failing Crankshaft Position Sensor
No Start Condition – If the ECU doesn’t receive a proper signal, the engine won’t start.
Stalling When Warm – The sensor may fail when the engine reaches operating temperature, causing unexpected stalling.
Erratic or Dead Tachometer – In some vehicles, a faulty CPS can cause the tachometer to behave irregularly.
Check Engine Code P0335 – A failed internal circuit may trigger this code, though not always.
Poor Performance at Certain RPMs – Timing issues can cause hesitation, especially at idle or higher RPMs.
Multiple Cylinder Misfires – Unlike a single bad coil or injector, CPS failure can cause misfires across all cylinders.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160621502
91160621501
0261210005
91160621500
91160621502
91160621503
The product you are viewing cross references to these numbers
Price: €78.00
In stock
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Vehicle Group
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
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- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
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- Porsche Cayman 2.7L 981 2013-16
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- Porsche Cayman GT4 3.8L 2015-16
Information
Camshaft position sensor.
Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2013-16
Porsche 987.1 Cayman 2005-08
Porsche 987.2 Cayman 2009-12
Porsche 981 Cayman 2014-16
Porsche 997.1 2005-08
Porsche 997.2 2009-12
Porsche 991 2012-16
Click 'Zoom in' for large parts diagram.
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760610603
The product you are viewing cross references to these numbers
Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2013-16
Porsche 987.1 Cayman 2005-08
Porsche 987.2 Cayman 2009-12
Porsche 981 Cayman 2014-16
Porsche 997.1 2005-08
Porsche 997.2 2009-12
Porsche 991 2012-16
Click 'Zoom in' for large parts diagram.
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760610603
99760610600
99760610601
99760610602
99760610603
6PU 009 168-001
6PU009168001
0232103057
0232103092
The product you are viewing cross references to these numbers
Price: €46.14
In stock
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
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- Porsche 997 MKII GT2 RS 2011-13
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Pulse sender.
Fits:
Porsche 987.2 Boxster 2009-12
Porsche 987.2 Cayman 2009-12
Porsche 997.2 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 22
Related reference numbers
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9A160611202
The product you are viewing cross references to these numbers
Fits:
Porsche 987.2 Boxster 2009-12
Porsche 987.2 Cayman 2009-12
Porsche 997.2 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 22
Related reference numbers
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9A160611202
9A160611200
9A160611201
9A160611202
0261210300
The product you are viewing cross references to these numbers
Price: €37.80
Orderable
Vehicle Group
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- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
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- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
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Information
Crankcase knock sensor.
This OE-Match knock (detonation) sensor is built to factory specifications for precise fit and performance. It detects engine knock or pinging and relays signals to the ECU, allowing it to adjust ignition timing for optimal operation.
Fits:
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2011
Porsche 991.1 2012 - 2016
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2013 - 2016
Porsche 957 Cayenne S / GTS / Turbo 2007 - 2010
Porsche 958 Cayenne S / GTS / Turbo 2011 - 2018
Porsche 970 Panamera 2010 - 2016
Porsche 95B.1 Macan S / Turbo 2014 - 2018
Diagram ref no 17
Mounted directly into the engine block, typically on a cylinder bank or block surface. Positioned to sense vibration from the combustion process (often near the pistons or cylinder heads).
• Detects abnormal combustion (knock) by measuring vibration in the engine block.
• Transmits voltage signals to the ECU so it can retard timing to avoid engine damage
• Helps preserve engine health, efficiency, and performance by preventing detonation
A failing or degraded knock sensor can cause misfires, rough idle, reduced power, poor fuel efficiency, or illuminated check engine lights. Without accurate knock sensing, the ECU may not properly adjust timing, risking engine damage under load. Installing an OE-Match replacement restores correct sensitivity, supporting optimal combustion and engine reliability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB905377C
The product you are viewing cross references to these numbers
This OE-Match knock (detonation) sensor is built to factory specifications for precise fit and performance. It detects engine knock or pinging and relays signals to the ECU, allowing it to adjust ignition timing for optimal operation.
Fits:
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2011
Porsche 991.1 2012 - 2016
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2013 - 2016
Porsche 957 Cayenne S / GTS / Turbo 2007 - 2010
Porsche 958 Cayenne S / GTS / Turbo 2011 - 2018
Porsche 970 Panamera 2010 - 2016
Porsche 95B.1 Macan S / Turbo 2014 - 2018
Diagram ref no 17
Mounted directly into the engine block, typically on a cylinder bank or block surface. Positioned to sense vibration from the combustion process (often near the pistons or cylinder heads).
• Detects abnormal combustion (knock) by measuring vibration in the engine block.
• Transmits voltage signals to the ECU so it can retard timing to avoid engine damage
• Helps preserve engine health, efficiency, and performance by preventing detonation
A failing or degraded knock sensor can cause misfires, rough idle, reduced power, poor fuel efficiency, or illuminated check engine lights. Without accurate knock sensing, the ECU may not properly adjust timing, risking engine damage under load. Installing an OE-Match replacement restores correct sensitivity, supporting optimal combustion and engine reliability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB905377C
0261231173
99760612100
0PB905377C
0PB905377
0PB905377A
0PB905377B
The product you are viewing cross references to these numbers
Price: €31.50
In stock