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Porsche > Panamera 971 MK2 (2021-2023) > 971.2 Panamera Turbo S E-Hybrid Sport Turismo 4.0L V8 2021-23 > Engine Electrical >

Speed / Reference / Knock Sensors

Speed / Reference / Knock Sensors

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DISPLAYING 1 to 5 (of 5 products)
Crankshaft position sensor. Porsche 95B.2 Macan / 971 Panamera / 9YA Cayenne - 057906433B, 9A790643300, 958906433
3
Crankshaft position sensor. Porsche 95B.2 Macan / 971 Panamera / 9YA Cayenne
Special Order item
958906433
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Product Information
Crankshaft position sensor.

Fits:
Porsche 95B.2 Macan S V6 3.0ltr - 2019 to 2021
Porsche 95B.2 Macan GTS V6 2.9ltr -  2019 to 2021
Porsche 95B.2 Macan turbo V6 2.9ltr - 2019 to 2021

Porsche 971.1 Panamera V6- 2017 to 2020
Porsche 971.1 Panamera V8 - 2017 to 2020
Porsche 971.2 Panamera V6 - 2021 to 2023
Porsche 971.2 Panamera V8 - 2021 to 2023

Porsche 9YA Cayenne V6 - 2018 to 2023
Porsche 9YA Cayenne V8 - 2018 to 2023

Diagram ref no 26

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Related, superseded, cross reference or alternative numbers for comparison.

958906433
057906433B
9A790643300
958906433

The product you are viewing cross references to these numbers
Crankshaft position sensor. Porsche 95B.2 Macan / 971 Panamera / 9YA Cayenne - 057906433B, 9A790643300, 958906433, 059906433J, 95860643310, 95860643312, 95860643311, 958906433A - 057 906 433 B
2
Crankshaft position sensor. Porsche 95B.2 Macan / 971 Panamera / 9YA Cayenne
958906433/1
Product Information
Product Information

Engine Crankshaft Position Sensor

The OE Match Engine Crankshaft Position Sensor is a critical component responsible for monitoring the position and rotational speed of the crankshaft. This data is sent directly to the engine control unit (ECU), allowing it to precisely manage fuel injection, ignition timing, and other essential engine functions. Without accurate crankshaft information, the ECU cannot properly control spark or fuel timing, leading to poor performance—or preventing the engine from running altogether.

Crankshaft position sensors typically use either magnetic or Hall-effect technology. Magnetic sensors generate a signal with a coil and magnet as the engine rotates, while Hall-effect sensors rely on a semiconductor that detects changes in magnetic fields. These sensors are commonly located near the crankshaft pulley/harmonic balancer or by the flywheel, depending on the engine design. They read notches or teeth on a reluctor (tone wheel) to create a signal the ECU can interpret.

Over time, heat, vibration, and contamination from oil, dirt, or metal debris can compromise the sensor’s internal circuitry, leading to inaccurate or lost signals. When the sensor begins to fail, drivability issues often follow—including stalling, rough idle, misfires, or a complete no-start condition.


Fits:
Porsche 95B.2 Macan S V6 3.0ltr - 2019 to 2021
Porsche 95B.2 Macan GTS V6 2.9ltr -  2019 to 2021
Porsche 95B.2 Macan turbo V6 2.9ltr - 2019 to 2021

Porsche 971.1 Panamera V6- 2017 to 2020
Porsche 971.1 Panamera V8 - 2017 to 2020
Porsche 971.2 Panamera V6 - 2021 to 2023
Porsche 971.2 Panamera V8 - 2021 to 2023

Porsche 9YA Cayenne V6 - 2018 to 2023
Porsche 9YA Cayenne V8 - 2018 to 2023


Symptoms of a Failing Crankshaft Position Sensor

• No-Start Condition

If the ECU does not receive a valid RPM signal from the sensor, the engine cannot start.

• Stalling When Warm

A failing sensor often causes the engine to stall when coming to a stop once it reaches operating temperature.

• Erratic or Dead Tachometer

Some older vehicles rely on the crankshaft sensor for tachometer readings. Strange tach behavior combined with running issues may point to CPS failure.

• Diagnostic Trouble Code P0335

A failing internal circuit may trigger code P0335, although not all faulty sensors will cause a check engine light.

• Poor Performance at Certain RPMs

Intermittent or out-of-range signals can cause timing drift, leading to performance issues—often more noticeable at high RPM or idle.

• Misfires Across Multiple Cylinders

Because the CPS affects overall ignition and fuel timing, failure can lead to misfires across all cylinders, unlike coil or injector failures that typically affect just one.

Diagram ref no 26



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

958906433
057906433B
9A790643300
958906433
059906433J
95860643310
95860643312
95860643311
958906433A

The product you are viewing cross references to these numbers
Crankshaft Position Sensor. Porsche 95B.2 Macan / 971 Panamera / 9YA Cayenne - 9A790643300, 958906433 - 0261210378
2
Crankshaft Position Sensor. Porsche 95B.2 Macan / 971 Panamera / 9YA Cayenne
958906433/2
Product Information
Product Information
Crankshaft Position Sensor.

The BOSCH Crankshaft Position Sensor is a high-quality OEM engine management sensor, designed to monitor the rotational speed and position of the engine’s crankshaft. This critical sensor continuously sends precise data to the engine control unit (ECU), enabling accurate control of ignition timing, fuel injection timing, and overall engine operation.

Fits:

  • Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
  • Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
  • Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
  • Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
  • Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
  • Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
  • Porsche 9YA Cayenne GTS V8 4.0L Petrol (460Hp) 2020-23
  • Porsche 9YA Cayenne Coupe GTS V8 4.0L Petrol (460Hp) 2021-23
  • Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
  • Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
  • Porsche 9YA Cayenne Turbo S E-Hybrid V8 4.0L (550Hp) 2019-23
  • Porsche 9YA Cayenne Coupe Turbo S E-Hybrid V8 4.0L (550Hp) 2020-23
  • Porsche 9YA Cayenne Coupe Turbo GT V8 4.0L (640Hp) 2021-23
  • Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
  • Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
  • Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
  • Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD 2017-20
  • Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD Executive 2017-20
  • Porsche 971.2 Panamera 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera GTS 4.0L V8 2021-23
  • Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S E-Hybrid 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S E-Hybrid Sport Turismo 4.0L V8 2021-23
  • Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
  • Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
  • Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21

Diagram Ref No 26 

As one of the most important sensors within the engine management system, the crankshaft position sensor ensures the ECU knows exactly where the crankshaft is during each stage of the combustion cycle. This sensor provides reliable signal accuracy, durability, and seamless compatibility with Porsche engine management systems.

What This Product Does:

  • Monitors crankshaft position and rotational speed
  • Provides real-time engine timing data to the ECU
  • Controls ignition timing and fuel injection sequencing
  • Supports smooth engine starting and operation
  • Helps optimise engine performance and efficiency
  • Ensures accurate synchronisation of engine management functions

Symptoms Of Wear Or Failure:
  • Engine cranks but fails to start
  • Intermittent stalling while driving
  • Engine misfires or rough running
  • Loss of engine power or hesitation
  • Check engine light illumination
  • Erratic tachometer readings
  • Extended cranking before starting
  • Crankshaft position sensor-related fault codes

Why Replacement Matters:
  • Restores accurate engine timing information
  • Improves engine starting reliability
  • Ensures proper fuel injection and ignition timing
  • Prevents stalling and intermittent engine shutdowns
  • Maintains smooth engine performance and drivability
  • Supports fuel efficiency and emissions compliance
  • Reduces the risk of unexpected breakdowns
  • Ensures the ECU can accurately manage engine operation under all driving conditions



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

958906433
9A790643300
958906433

The product you are viewing cross references to these numbers
Electrical Plug Housing - Multiple Applications. Porsche 964/993/996 Carrera & Turbo & GT3 / 986 Boxster - 99965291640
2
Electrical Plug Housing - Multiple Applications. Porsche 964/993/996 Carrera & Turbo & GT3 / 986 Boxster
Special Order item
99965291640
Product Information
Product Information

Electrical plug housing - multiple applications (see below).

Porsche 986 Boxster 1997-04
- Camshaft position sensor
- Throttle valve
- Ignition coil

Porsche 996 Carrera & GT3 1998-05
- Ignition coil

Porsche 964/993 Carrera & Turbo 1994-98
- Crankshaft position sensor



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

99965291640
99965291640

The product you are viewing cross references to these numbers
Electrical Plug Housing - Multiple Applications. Porsche 964/993/996 Carrera & Turbo & GT3 / 986 Boxster - 99965291640 - 1928402868
2
Electrical Plug Housing - Multiple Applications. Porsche 964/993/996 Carrera & Turbo & GT3 / 986 Boxster
99965291640/1
Product Information
Product Information

Electrical plug housing - multiple applications (see below).

Porsche 986 Boxster 1997-04
- Camshaft position sensor
- Throttle valve
- Ignition coil

Porsche 996 Carrera & GT3 1998-05
- Ignition coil

Porsche 964/993 Carrera & Turbo 1994-98
- Crankshaft position sensor



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

99965291640
99965291640

The product you are viewing cross references to these numbers
DISPLAYING 1 to 5 (of 5 products)
About Speed / Reference / Knock Sensors

Speed, Reference & Knock Sensors – Precision Monitoring for Porsche Engine Performance

Speed, reference, and knock sensors are crucial components in your Porsche’s engine management system. They work together to provide the engine control unit (ECU) with accurate data about crankshaft position, engine speed, and vibration — allowing the system to adjust timing, fueling, and ignition for maximum performance and protection.

At Design911, we supply a comprehensive selection of genuine and high-quality sensors for all Porsche Models, including 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each sensor is engineered for precise signal output, reliability, and durability, ensuring consistent performance and optimal engine operation.

What Do Speed, Reference & Knock Sensors Do?

These sensors play distinct yet complementary roles in your Porsche’s electronic control system:

  • Speed Sensors: Measure rotational speed of the wheels or crankshaft to optimise traction, stability, and engine timing.
  • Reference Sensors: Provide accurate engine position data to control ignition timing and fuel injection.
  • Knock Sensors: Detect engine detonation (pinging) and send signals to the ECU to adjust ignition timing, preventing engine damage.

Together, they ensure your Porsche runs smoothly, efficiently, and safely under all driving conditions.

Why Do These Sensors Fail?

Due to exposure to heat, vibration, and contamination, these sensors can degrade over time. Common causes of failure include:

  • Heat damage from proximity to engine or exhaust components.
  • Wiring corrosion or connector oxidation reducing signal accuracy.
  • Mechanical wear on sensor tips or mounting points.
  • Contamination from oil, dirt, or debris interfering with readings.
  • Electrical interference or internal circuitry failure.

Typical symptoms of sensor failure include poor acceleration, engine misfires, erratic idle, loss of power, increased fuel consumption, or a check engine light.

Why Replace Faulty Sensors?

A failing sensor can lead to poor performance, reduced fuel efficiency, and even engine damage if left unchecked. Replacing worn or damaged sensors ensures the ECU receives accurate data, maintaining safe and efficient operation.

Benefits of replacement include:

  • Restored ignition timing and fuel efficiency.
  • Improved throttle response and smooth acceleration.
  • Protection against detonation and engine wear.
  • Reliable performance with manufacturer-quality precision.

All sensors in our range are designed with high-quality materials, advanced shielding, and precision calibration to deliver consistent readings and long-term reliability in demanding conditions.

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