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Camshaft and Crankshaft Position Sensors

Shop OEM replacement camshaft and crankshaft position sensors for Toyota, Holden, Ford, Mitsubishi, Nissan, Hyundai, Kia, BMW, Mazda and more. Matched to OEM specifications for precise ignition timing. Use the Vehicle Part Finder to confirm fitment.

Shop Our Camshaft and Crankshaft Position Sensors

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What Do Camshaft and Crankshaft Position Sensors Do?

The crankshaft position sensor (CKP sensor) monitors the rotational speed and position of the crankshaft and sends this data to the engine control unit (ECU). The ECU uses this information to control fuel injection timing and ignition timing. The camshaft position sensor (CMP sensor) works alongside the crankshaft sensor to identify which cylinder is on its compression stroke, allowing the ECU to deliver sequential fuel injection. Together these two sensors form the foundation of your engine's ignition and fuel management system. A failure in either sensor can prevent the engine from starting at all.

Symptoms of a Failing Cam or Crank Sensor

Because these sensors are critical to ignition and fuel delivery, symptoms of failure are often severe and immediate. Common signs include:

  • Engine cranks but will not start
  • Intermittent stalling - particularly at operating temperature
  • Rough idle or misfires under load
  • Hesitation or loss of power during acceleration
  • Engine cuts out suddenly with no warning
  • Check Engine light with codes P0335 to P0338 (crank) or P0340 to P0349 (cam)

Crankshaft sensor failures can also prevent the ECU from registering engine speed, which may cause the instrument cluster to show zero RPM even while cranking.

Fitment and Technical Accuracy

Cam and crank sensors vary in sensor technology (Hall effect vs inductive), connector type, mounting configuration, and signal output between makes and models. Fitting an incorrect sensor type will produce incorrect timing signals and can prevent the engine from starting. Every sensor in our range is cross-referenced against OEM part numbers for an exact match. With 293 sensors in stock we cover a wide range of Australian vehicles. Use the Vehicle Part Finder or filter by make and model to confirm the correct part.

Why Buy From SensorGal?

SensorGal is a 100% Australian owned family business stocking aftermarket OEM replacement camshaft and crankshaft position sensors for Toyota, Holden, Ford, Mitsubishi, Nissan, Hyundai, Kia, BMW, Mazda, Subaru, Mercedes-Benz and Suzuki. Orders placed before 12 noon are dispatched same day from our Cranbourne VIC warehouse via express post. All parts carry a 1-Year Australian warranty and our no-fuss returns policy.

Frequently Asked Questions

How do I test a crankshaft or camshaft position sensor?

Use an OBD2 scanner to check for fault codes P0335 to P0338 (crankshaft) or P0340 to P0349 (camshaft). You can also test the sensor with a multimeter - inductive sensors should show resistance between 200 and 1,000 ohms, while Hall effect sensors require a live voltage test with the engine cranking. Erratic or absent RPM signal on a live data scanner is a strong indicator of sensor failure.

Can a cam or crank sensor fault cause my vehicle to go into limp mode?

Yes. A faulty crankshaft position sensor in particular can cause the ECU to lose engine speed and position data entirely, which may trigger limp mode or prevent the engine from starting. A faulty camshaft sensor on variable valve timing engines can cause the VVT system to default to a fixed position, significantly reducing power and fuel economy.

Do cam and crank sensors need to be programmed after replacement?

In most cases no - aftermarket OEM replacement sensors are direct plug-in replacements that require no programming. However some vehicles, particularly late model European makes including BMW and Mercedes-Benz, may require a crankshaft adaptation reset using a dealer-level scan tool after replacement. Check your vehicle service information before replacing the sensor.

What are the symptoms of a faulty crankshaft position sensor?

Symptoms include intermittent stalling, engine not starting, rough idle, misfires, and a Check Engine light with codes P0335-P0338. In severe cases the engine will crank but not start as the ECU cannot determine crank position for ignition timing.

What are the symptoms of a faulty camshaft position sensor?

Symptoms include poor performance, misfires, difficulty starting, rough idle, and fault codes P0340-P0343. Variable valve timing systems (VVT) will also be affected, causing sluggish response and increased fuel consumption.

Can I drive with a bad crankshaft position sensor?

If the sensor has failed completely the engine will not start or will stall and not restart. If it is intermittently failing, driving is dangerous - the engine can cut out without warning. Replace it immediately.

Do I need to replace both the cam and crank sensor at the same time?

Not necessarily - replace whichever has failed based on fault codes and diagnosis. However, if your vehicle has high kilometres and one has failed, it is worth considering replacing both as they are similar in age and condition.