The crankshaft position sensor (CPS) is one of the key elements of the engine management system Nissan Almera Classic (N16). Its malfunction leads to engine malfunctions, difficult starting or a complete stop of the car. Owners of this model often encounter sensor problems after 150–200 thousand kilometers, especially when operating in conditions of high humidity or frequent temperature changes.

Unlike many modern cars, where DPKV is integrated into complex electronic systems, Almera Classic its replacement is relatively simple and does not require specialized equipment. However, there are nuances: the wrong choice of spare part (original vs analogue), errors during dismantling or installation can lead to new breakdowns. In this article we will look at how to independently diagnose a malfunction, select a high-quality sensor and perform a replacement without consequences for the engine.

Signs of a faulty crankshaft sensor on a Nissan Almera Classic

DPKV transmits data on the position and speed of the crankshaft to the ECU, which adjusts fuel injection and ignition. When it fails or malfunctions, symptoms appear immediately, but they are easily confused with problems of other systems. Here are the key signs pointing specifically to the sensor:

  • 🔴 Engine won't start or stalls immediately after start - the ECU does not receive a signal about the crankshaft position, blocking the fuel supply.
  • ⚡ Floating speed at idle speed (from 500 to 1500 rpm) - the sensor transmits an unstable signal, disrupting the ignition timing.
  • 🚗 Jerks and dips during acceleration, especially at speeds of 60–90 km/h - typical for partial failure of the DPKV.
  • 🔧 Lights up on the dashboard Check Engine with errors P0335 or P0336 (crankshaft sensor circuits).

Important: similar symptoms may cause malfunctions ignition coils, fuel pump or timing belt. Before replacing the DPKV, check for spark on the spark plugs and pressure in the fuel rail. If the engine does not start at all and the scanner shows an error P0335, the probability of a problem with the sensor is 90%.

⚠️ Attention: On Nissan Almera Classic with engine QG15DE (1.5 l) crankshaft sensor is located next to the flywheel, and its contacts often oxidize due to oil ingress. Before replacing, clean the connector with alcohol - this can restore functionality without purchasing a new part.
📊 What symptom of DPKV malfunction have you encountered?
  • Engine won't start
  • Floating speed
  • Jerks during acceleration
  • Check Engine without other symptoms
  • Other

Which crankshaft sensor to choose for Nissan Almera Classic

Original DPKV for Almera Classic (N16) has article number 23731-4M000 or 23731-4M005 (depending on the year of manufacture). Cost - from 3,500 to 5,000 rubles. However, there are high-quality analogues on the market that are cheaper:

Brand Article Price, ₽ Features
Nissan (original) 23731-4M000 4 200–5 000 12 months warranty, exact compatibility
Bosch 0 261 210 115 2 800–3 500 High quality magnetic core
Denso 550-0101 3 000–3 800 Vibration resistant, suitable for turbocharged engines
Febi 23731 1 800–2 500 Budget option, requires testing before installation

When choosing an analogue, pay attention to:

  • 🧲 Sensor type: must be inductive (with a magnetic core), and not on the Hall effect.
  • 📏 Dimensions: case length - 65 mm, diameter - 22 mm, thread - M12×1.25.
  • 🔌 Connector: the original one has 2 contacts (signal and ground) with a pitch of 2.8 mm.
⚠️ Attention: Sensors from Nissan Primera P12 (article 23731-4M010) are externally identical, but have a different winding resistance (200–250 Ohms instead of 180–200 Ohms). Installing them will result in an error P0336 and unstable engine operation.
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Before purchasing, check the sensor with a multimeter: the winding resistance should be 180–200 Ohms. If the reading is above 250 Ohm, the part is defective.

Preparing for replacement: tools and safety precautions

To replace DPKV with Nissan Almera Classic no pit or lift required - just a jack and supports for the rear wheels. Here is a complete list of tools and materials:

Jack and stops (or inspection hole)

10 mm socket wrench (for removing protection)

12 mm socket with extension

Flat blade screwdriver (for removing chips)

Multimeter (to test the new sensor)

WD-40 or equivalent (for thread processing)

New crankshaft sensor (check the part number above)

Rags and alcohol for cleaning contacts -->

Before starting work:

  1. Disable negative battery terminal - this will prevent a short circuit when disconnecting the sensor connector.
  2. Make sure the engine cooled down — the temperature of the flywheel next to the DPKV can exceed 80°C.
  3. Clean the area around the sensor of dirt to prevent debris from entering the engine.

A critical nuance: on the Almera Classic the sensor is located above the flywheel, and when dismantling it there is a risk of dropping the mounting bolt into the pan. Cover the hole with a rag or use a magnetic tool!

Step-by-step instructions for replacing the crankshaft sensor

The replacement procedure takes 30–40 minutes. Follow the algorithm to avoid mistakes:

  1. Removing protection. Jack up the front right wheel, remove the plastic engine protection (4 10 mm bolts).
  2. Access to the sensor. The DPKV is located on the gearbox, next to the flywheel. Disconnect the connector by pressing the latch (use a screwdriver if the latch is tight).
  3. Dismantling. Unscrew the fastening bolt with a 12 mm socket. Carefully remove the sensor by rocking it from side to side (the rubber seal may stick).
  4. Installing a new sensor. Clean the seat from oil and dirt. Insert the new DPKV until it stops, tighten the bolt to a torque of 8–10 Nm (do not overtighten!). Connect the connector.
  5. Check. Connect the battery, start the engine. If the error Check Engine remains, reset it with a scanner or by disconnecting the battery for 10 minutes.

Visually assess the condition of the old sensor:

  • 🔍 Cracks on the body - a sign of mechanical damage.
  • 🧲 Rust on the core - indicates moisture ingress.
  • 🛢️ Oil stains - signal about seal leakage.
What should I do if after replacing the error does not disappear?

If Check Engine lights up after installing a new sensor, check:

1. **Wiring integrity** from the DPKV to the ECU (wires near the exhaust manifold often fray).

2. **The gap between the sensor and the flywheel** should be 1.0–1.5 mm (with a larger gap the signal is weak).

3. **Condition of the flywheel ring gear** - chipped teeth cause false signals.

Common replacement mistakes and how to avoid them

Even experienced car owners make mistakes that lead to repeated breakdowns. Here are the most common:

  1. Using a non-original O-ring.

    Most analogues are equipped with low-quality rubber rings, which harden at low temperatures. Buy the original ring separately (11956-4M000) or use sealant Loctite 574.

  2. Retightening the mounting bolt.

    Tightening torque: 8–10 Nm. Exceeding will lead to deformation of the sensor body and false signals.

  3. Ignoring clearance check.

    If debris (for example, metal shavings) gets between the DPKV and the flywheel, the gap will increase and the ECU will not “see” the signal. Check with a dipstick!

Another typical problem is connector damage when disconnected. On Almera Classic The DPKV chip is fragile and can be easily broken if the wires are pulled. Always press the plastic release on the side!

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If after replacing the sensor the engine is unstable and the scanner shows an error P0336, check the polarity of the connector. Mixed up contacts are a common cause of failures.

Diagnostics of the crankshaft sensor without a scanner

If you do not have diagnostic equipment, you can check the DPKV with a multimeter or oscilloscope. Here are 3 methods:

  1. Checking resistance.

    Set the multimeter to ohmmeter mode. Connect the probes to the sensor contacts. Resistance of a serviceable DPKV - 180–200 Ohm. Readings below 100 ohms or above 300 ohms indicate a malfunction.

  2. Inductance check.

    Switch the multimeter to measure inductance (mH). Norm for Almera Classic - 200–400 mH. Deviations indicate an interturn short circuit.

  3. Oscilloscope (for advanced).

    Connect the oscilloscope to the signal wire of the sensor (pin "A"). When scrolling with the starter, a smooth sine wave with an amplitude of 0.5–1.0 V should be displayed on the screen. Jumps or absence of signal are a sign of a malfunction.

Alternative way - replacing with a known good sensor. If the symptoms disappeared, the problem was DPKV. If not, look for the reason in the wiring or ECU.

Cost of service replacement vs self-repair

Prices for replacing DPKV in services vary depending on the region and service station level:

Service type Cost of work, ₽ Lead time Warranty
Official dealer Nissan 2 500–3 500 1–2 hours 12 months
Specialized car service 1 200–2 000 30–40 minutes 6 months
Garage workshops 800–1 500 20–30 minutes No or 1 month
Self-replacement 0 (spare part only) 30–60 minutes —

The savings when repairing yourself are obvious, but consider the risks:

  • 🔧 Connector damage (the cost of wiring repairs is from 1,500 ₽).
  • 🔩 Lost mounting bolt (removal from the pallet will cost 3,000–5,000 rubles).
  • 🚗 Incorrect installationleading to repeated failure (for example, due to a large gap).

If you are not confident in your skills, it is better to contact the service. For example, in Moscow and St. Petersburg there are service stations specializing in Nissan, where the replacement will be carried out with a guarantee and testing at the stand.

FAQ: Frequently asked questions about replacing the crankshaft sensor

Is it possible to drive with a faulty DPKV?

No. The crankshaft sensor is a critical element. If it fails, the engine will either not start or will work intermittently, which will lead to:

  • Damage to the catalyst (due to incorrect composition of the fuel mixture).
  • Engine overheating (delayed ignition).
  • Increased fuel consumption (up to 30–40%).

If the sensor fails on the way, it is recommended to call a tow truck.

How to distinguish an original sensor from a fake?

Original DPKV Nissan has:

  • Logo Nissan or Hitachi on the body (engraved, not glued).
  • Metal core with anti-corrosion coating (for fakes - ferrous metal).
  • Plastic connector with amplifiers (analogues often have fragile plastic).

Check the packaging: the original comes in a branded box with a hologram and an article number that matches the catalogue.

What happens if you don't replace the O-ring?

Old or poor quality O-rings lead to:

  • Air leaking into the system, which causes an error P0171 (lean mixture).
  • Oil getting on the sensor contacts, leading to a short circuit.
  • Sensor vibrations due to play, which distorts the signal to the ECU.

The cost of the original ring is 200–300 rubles, which is not comparable to the risks.

Is it possible to clean the crankshaft sensor?

Cleaning is possible only in one case: if there is oil deposits or dirt. Use:

  • Alcohol or contact cleaner (CRC Contact Cleaner).
  • A soft brush (not metal!).

If the problem is case cracks or winding damage, cleaning will not help - only replacement.

How often should the crankshaft sensor be replaced?

DPKV is a non-consumable element, and in normal mode it serves the entire life of the vehicle. However, on Nissan Almera Classic It is recommended to check it:

  • Every 100,000 km (visual inspection for cracks and corrosion).
  • When symptoms of a malfunction appear (see the first section of the article).
  • After engine repair, if the flywheel or gearbox was removed.