Crankshaft position sensor (CPS) on Nissan Almera N16: diagnostics and replacement

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

Unlike sensors of other systems, DPKV has no mechanical moving parts, but its magnetic core and winding wear out over time. On Almera N16 with engines QG15DE And QG18DE the sensor is located in an inconvenient place - next to the flywheel, which complicates access. This article will help you figure out how to independently diagnose the problem, select a replacement, and complete the installation without errors.

Signs of DPKV malfunction on Nissan Almera N16

Symptoms of a broken crankshaft sensor are often similar to problems with the ignition or fuel supply system. However, there are specific signs that directly indicate problems with DPKV:

• 🔴 Engine won't start or stalls immediately after starting - the ECU does not receive a signal about the crankshaft position, therefore it cannot synchronize injection and ignition.
• ⚡ Misfires at idle or under load, especially in wet weather - the sensor may give false signals due to corrosion of the contacts.
• 📉 Power drop and "failures" during acceleration - the ECU goes into emergency mode, using averaged data instead of exact DPKV readings.
• 🚨 Lights up on the dashboard Check Engine with errors P0335 (DCCV circuit malfunction) or P0336 (signal out of acceptable limits).

On Almera N16 With an automatic transmission, a faulty DPKV can cause jerks when changing gears, since the ECU incorrectly calculates the load on the engine. In some cases, the car stops responding to the gas pedal, which is especially dangerous when overtaking.

⚠️ Attention: If the engine suddenly stops while driving and does not start, do not attempt to tow the vehicle with the gear in gear. On Almera N16 this may cause damage to the catalyst due to uncontrolled fuel injection.

Where is the DPKV located on the Nissan Almera N16?

On Nissan Almera N16 crankshaft position sensor is installed on gearbox housing, next to the flywheel. Exact location:

• 📍 On the right side of the engine (in the direction of travel), when viewed from the interior.
• 🔧 Attaches with one bolt to 10 mm to the bracket.
• 🔌 A connector with three wires (signal, power, ground) is routed towards the spar.

To get to DPKV you need to:

1. Remove air filter with the housing (unscrew the 4 bolts on 10 mm and loosen the clamps).
2. Disconnect wiring harness connector from the sensor (the latch opens by pressing the latch).
3. Unscrew the mounting bolt and carefully remove the sensor without damaging the O-ring.

On some versions Almera N16 (for example, with air conditioning) access is complicated by the cooling system pipes. In this case it may be necessary partial drain of antifreeze or removing the expansion tank.

How to distinguish DPKV from camshaft sensor?

On the Almera N16, the camshaft sensor (DPRV) is located on the cylinder head and has a two-pin connector. The DPKV is always three-pin and is installed lower, next to the flywheel.

How to check DPKV on Nissan Almera N16?

Sensor diagnostics can be performed in three ways: visual inspection, checking multimeter or using oscilloscope. For most owners, the first two methods are sufficient.

1. Visual inspection

Inspect the sensor for:

• 🔍 Cracks on the body (especially near the connector).
• 💧 Traces oil or antifreeze — the ingress of liquids leads to corrosion of the contacts.
• 🧲 Availability metal shavings at the end - indicates flywheel wear.

2. Check with a multimeter

To test winding resistance:

1. Switch the multimeter to resistance measurement mode (2000 Ohm).
2. Connect the probes to the terminals 1 And 2 sensor connector (signal and ground contacts).
3. Nominal resistance of a serviceable DPKV: 550–750 Ohm.

If the resistance is lower 500 Ohm or tends to infinity - the sensor is faulty. Also check wiring integrity from the sensor to the ECU (contact 3 - food +5V).

3. Checking with an oscilloscope (for advanced)

This method requires special equipment, but gives 100% results. Connect the oscilloscope to the signal wire (pin 1) and crank the engine with the starter. A working sensor should output sine wave with an amplitude of at least 0.5V.

⚠️ Attention: On Almera N16 with engine QG18DE after 2004, sensors with a different resistance range were installed (700–900 Ohm). Check the parameters for your modification in the service documentation.

Original and similar DPKV for Nissan Almera N16

Original sensor from Nissan has an article number 23731-4M000 or 23731-4M005 (depending on the year of manufacture). Its average price is 3500–5000 rubles. However, there are high-quality analogues from trusted manufacturers:

Manufacturer	Article	Resistance (Ohm)	Price (RUB)	Notes
Nissan (original)	23731-4M000	550–750	4500	12 month warranty
Bosch	0 261 210 115	600–800	2800	Suitable for QG15DE/QG18DE
ERA	550447	580–720	1900	Budget option
Blue Print	ADG01401	650–750	2500	O-ring included

When choosing an analogue, pay attention to cable length — on some sensors it is 5–10 cm shorter than the original one, which complicates installation. Also check availability o-ring included (item no. 11956-4M000).

Step-by-step replacement of DPKV on Nissan Almera N16

To replace the sensor you will need:

• 🔧 Key on 10 mm (head with extension).
• 🔌 Flat blade screwdriver (for connector lock).
• 🧴 WD-40 or similar lubricant (the bolt often sticks).
• 📏 Vernier calipers (to check the gap).

Sequence of actions:

1. Disable negative battery terminal (key to 10 mm).
2. Remove air filter (as described above).
3. Disconnect the sensor connector by pressing the latch. Do not pull on the wires - this may damage the contacts in the control unit!
4. Unscrew the mounting bolt and remove the sensor. If necessary, treat the threads with WD-40.
5. Clean the seat from dirt and install a new sensor. The gap between the end of the sensor and the flywheel should be 0.5–1.5 mm.
6. Tighten the bolt to torque 8–10 Nm (do not overtighten!).
7. Connect the connector and reassemble everything in reverse order.

After replacement be sure to clear errors from the ECU memory. To do this:

1. Disconnect the battery terminal for 10 minutes.
2. Or use a diagnostic scanner (for example, ELM327) to reset codes P0335/P0336.

Common mistakes when replacing DPKV

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

• 🔧 Tightening the fastening bolt - this deforms the sensor body and changes the gap. Maximum torque - 10 Nm.
• 🧲 Ignoring metal shavings at the end of the sensor. If it is not removed, it will quickly damage the new sensor.
• 🔌 Connector damage when disconnected. Always press down on the latch and do not pull on the wires.
• 📏 Incorrect clearance between the sensor and the flywheel. Optimal value - 1 mm (checked with a dipstick).

Another typical problem is dirt getting into the seat. Before installing a new sensor, clean the hole with compressed air or a lint-free cloth. Usage WD-40 for cleaning connector contacts helps avoid oxidation.

⚠️ Attention: On Almera N16 with engine QG18DE after 2003, the sensor may have a modified connector (with an additional plastic retainer). When purchasing an analogue, make sure that it is compatible with your version of the ECU.

Cost of replacing DPKV in the service vs self-repair

Prices for replacing the sensor in car services vary depending on the region and level of the service station:

Service type	Cost of work (rub)	Lead time	Warranty
Official dealer Nissan	2500–3500	1–2 hours	12 months
Independent service	1200–2000	30–60 minutes	6 months
Self-replacement	0 (sensor cost only)	40–90 minutes	—

Replacement yourself saves money 1500–3500 rubles, but requires caution. The main risks during amateurish repairs:

• 🔧Damage oil lines or air conditioner tubes when removing the air filter.
• 📉 Incorrect sensor installation leading to repeated mistakes P0335.
• 🔋 Short circuit when connecting battery with unreset errors.

If you are not confident in your skills, it is better to contact the service. For example, on Almera N16 with automatic transmission, access to the sensor is complicated by the transmission tray, and its removal requires a special tool.

FAQ: Frequently asked questions about DPKV on Nissan Almera N16

Is it possible to drive with a faulty DPKV?

No. The engine will either not start or will operate in emergency mode with constant misfires. Driving for a long time with such a malfunction leads to catalyst overheating and increased fuel consumption.

How to distinguish a malfunction of the DPKV from problems with the DPKV?

Errors P0335/P0336 indicate DPKV, and P0340/P0341 - to the camshaft sensor (DPRV). Also, if the DPRV is faulty, the engine usually starts, but runs unstable, whereas if the DPRV is faulty, starting is often impossible.

Do I need to reset adaptations after replacing the DPKV?

On Almera N16 with ECU Hitachi or Siemens adaptations are reset automatically after errors are reset. However, if the engine is unstable, it is recommended to reset long-term fuel trim through a diagnostic scanner.

Is it possible to clean the old DPKV?

Cleaning the contacts and housing is possible, but restore the magnetic properties of the core it is impossible. If the sensor produces incorrect signals, it must be replaced. The exception is that the end is contaminated with metal shavings, which can be removed with a soft cloth.

Will DPKV from other Nissan models fit?

Sensors from Nissan Primera P12 (23731-4M010) and Nissan Sunny N16 completely interchangeable. Sensors from Renault Megane 2 (article 8200673067), but a resistance check is required.