do not press the back button…
-
All Parts
-
- Parts Accessories Chassis / Bodywork Brakes Clothing & Gifts Electrical & Relays Engine Cooling Engine Electrical Engine Rebuild Parts Exhausts Gearbox / Transmission Heating / Air Conditioning Hydraulics Interior & Accessories Incar / Multimedia Lighting Parts for Other Cars Service Parts Steering Parts Suspension & Axle Tyres Wheels Wheel Accessories
-
- Brakes
-
Engine Rebuild
-
- Engine Rebuild Parts Oil System Parts Fuel System Parts Gaskets & Sets Belts / Tensioners / Rollers Chains & Tensioners Timing covers and gaskets Engine Bearings / Shells Engine Valves / Guides / Springs Rocker Arms & Tappets Engine Mounts Connecting Rod Cylinder Head / Camshaft Carrier Camshaft covers / Gaskets Crankcase Parts Crankshaft & Parts Turbo Chargers / Intercoolers & Parts Air Intake & Injection Specialist Tools
-
-
Chassis & Bodywork
-
- Chassis / Bodywork Front Lid Damper Rear Lid Damper Bonnets / Locks & Latches Boots / Rear Lid / Locks and Latches Rear lid / Tailgate Bumpers Front Bumpers Rear Door Handles | Locks | Keys Side Sill Panels Mirrors & Parts Undertrays Chassis & Engine Rear Wiper Arms & Blades Wheel Arch Liners & Covers Roof - Cabrio / Targa / Coupe / Speedster Plastic Covers Fastenings & Fixings
-
-
Suspensions & Axle
-
- Suspension & Axle Anti Roll Bar Bushes Anti Roll Bar Bracket Drop Links & Bushes FRONT Drop Links & Bushes REAR Shock Absorbers FRONT Shock Absorber Parts FRONT Shock Absorbers REAR Shock Absorber Parts REAR Coil Springs REAR Track Control Arm REAR Wishbones & bushes Cross Member & Parts Wheel Hub / Carrier Electronic Damper Control Air Suspension Levelling
-
-
Electrical
-
- Engine Electrical Temperature Sensor Speed / Reference / Knock Sensors
- Lighting
- Accessories
- Get to Know Us
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Impulse / speed reference sensor. Porsche 911 84-89 › 91160621502
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
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
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
- Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
Fits:
Porsche 958 Cayenne 3.0L Diesel 2011-18
Porsche 958 Cayenne 4.2L Diesel 2013-18
Porsche 958 Cayenne 3.0L Hybrid 2012-18
Porsche 970 Panamera 3.0L Diesel 2012-16
Porsche 970 Panamera 3.0L Hybrid 2012-16
Click 'Zoom in' for large parts diagram.
Diagram ref no 16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95860643312
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
- Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
The OE Match Camshaft Position Sensor plays a vital role in monitoring the precise timing and position of each camshaft. This information is sent to the engine control module (ECM), which also relies on signals from sensors such as the crankshaft position sensor and knock sensors. Using these inputs, the ECM adjusts ignition timing and fuel injection—advancing or retarding timing based on driving conditions like heavy load or changes in air pressure.
When a camshaft position sensor begins to fail, it can trigger a check engine light and, in severe cases, may force the vehicle into limp mode to protect the engine.
Fits:
Porsche 957 Cayenne 3.0ltr Diesel - 2009 to 2012
Porsche 958 Cayenne 3.0ltr / 4.2ltr Diesel - 2011 to 2018
Porsche 958 Cayenne 3.0ltr Hybrid 2011 to 2018
Porsche 95B.1 Macan 3.0ltr Diesel 2014 to 2018
Porsche 970 Panamera 3.0ltr Diesel 2011 to 2016
Porsche 970 Panamera 3.0ltr Hybrid 2011 to 2016
Engine Camshaft Position Sensor Function
The camshaft position sensor—often called the CMP sensor—provides real-time camshaft position data to the ECU. This feedback is essential for optimizing ignition timing and ensuring smooth, efficient engine operation. A faulty sensor can lead to significant drivability issues such as hesitation, stumbling, loss of power, or even hard-starting and no-start situations.
Symptoms of a Failing Camshaft Position Sensor
• Check Engine Light (CEL)
A malfunctioning sensor often triggers diagnostic trouble codes related to camshaft timing.
• Extended Crank or No-Start
Without accurate timing feedback, the engine may struggle to start or fail to start entirely.
• Poor Drivability
Hesitation, stumbling on acceleration, and reduced engine power are common signs of a failing CMP sensor.
Click 'Zoom in' for large parts diagram.
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95860610601
The product you are viewing cross references to these numbers
- 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 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
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
- Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- Porsche 970.1 Panamera S V8 4.8L 2009-13
- Porsche 970.1 Panamera 4S V8 4.8L 2009-13
- Porsche 970.1 Panamera GTS V8 4.8L 2011-13
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
- Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16
- Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 Executive 2014-16
- Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
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
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed