Crankshaft sensor on Nissan Sunny: diagnostics, errors and DIY replacement

The crankshaft position sensor (CPS) is one of the most critical elements of the engine management system. Nissan Sunny. Not only the stability of engine starting, but also the accuracy of fuel injection, ignition timing, and ultimately the life of the power unit depend on its correct operation. Unlike many other sensors, a malfunction of the DPKV often manifests itself unexpectedly: just yesterday the car started with a half-turn, but today it refuses to respond to the ignition key or operates intermittently.

In this article we will look at specific symptoms of a faulty crankshaft sensor on Nissan Sunny (including models with engines GA14DE, GA16DE, SR20DE and others), we will learn correctly diagnose the problem without expensive equipment, and we will also describe in detail the replacement process, taking into account typical errors. We will pay special attention original articles and analoguesthat are suitable for different generations Sunny (N14, N15, N16, B13 and B14). If your car suddenly lost power, started to stall, or stopped starting altogether, these instructions will help you save time and money on service.

How does the crankshaft sensor work on a Nissan Sunny and why is it important?

Crankshaft position sensor Crankshaft Position Sensor, CKP) is inductive or Hall sensor, which reads signals from the ring gear on the flywheel or the crankshaft itself. On Nissan Sunny most often used inductive type: It generates alternating current when metal teeth pass past its core. The signal enters ECU, which calculates based on it:

• 🔹 Exact position of the crankshaft at each moment of time (to synchronize ignition and injection).
• 🔹 Engine rotation speed (revolutions).
• 🔹 Direction of rotation (important to prevent reverse when starting).

If the sensor fails or transmits incorrect data, The ECU goes into emergency mode — either completely blocks the engine from starting, or uses preset “average” parameters. In the latter case, the engine will work intermittently, lose power and consume more fuel.

On Nissan Sunny The crankshaft sensor is usually located on the cylinder block next to the flywheel (from the gearbox side) or on the timing cover. Its exact location depends on the engine model:

• 🔧 GA14DE/GA16DE: on the cylinder block, under the thermostat.
• 🔧 SR20DE: on the timing cover, closer to the interior.
• 🔧 QG15DE/QG18DE: on the block, next to the starter.

Signs of a faulty crankshaft sensor: how to recognize the problem

Malfunction of DPKV on Nissan Sunny can manifest itself in different ways - from a complete refusal to start to barely noticeable “glitches” in the operation of the engine. The main difficulty is that symptoms often coincide with malfunctions of other systems (for example, ignition coil, fuel pump or ECU). However, there are a number characteristic featuresthat should alert you:

• ⚠️ Engine won't start (the starter turns, but there is no spark or injection).
• ⚠️ Floating speed at idle (from 500 to 1500 rpm).
• ⚠️ Power Loss and “failures” during acceleration (especially at speeds above 3000).
• ⚠️ Detonation (knock of “fingers”) under load.
• ⚠️ Lights up Check Engine with errors P0335, P0336 or P0320.

It is important to understand that The sensor itself is not always to blame. Problems may be caused by:

• 🔌 Oxidation of contacts or broken wiring.
• 🧲 Sensor contamination metal shavings.
• 🔄 Damage to the ring gear on the flywheel.
• 📶 Electromagnetic interference from high voltage wires.

⚠️ Attention: If the engine Nissan Sunny suddenly stalled and will no longer start, but there is a light on the dashboard immobilizer (key), the problem may not be in the DPKV, but in anti-theft system. Check the chip in the key or the immobilizer unit.

Crankshaft sensor diagnostics: 3 ways to check without a scanner

Before changing the sensor, it needs to be checked. On Nissan Sunny it can be done three ways - from a simple visual inspection to checking with a multimeter. You will need:

• 🔧 Key on 10 mm or 12 mm (depending on model).
• 🔍 Flashlight and magnifying glass (for inspecting contacts).
• 📊 Multimeter (for measuring resistance and voltage).

Method 1: Visual inspection

Remove the sensor (unscrew 1-2 bolts and disconnect the connector) and inspect it for:

• 🔹 Cracks or chips on the case.
• 🔹 Traces of oil or dirt on the sensitive element.
• 🔹 Oxidation on the connector contacts (clean only alcohol or WD-40).

Method 2: Check resistance

Switch the multimeter to resistance measurement mode (2000 Ohm) and connect the probes to the sensor terminals. Normal values for Nissan Sunny:

Engine model	Sensor Resistance (Ohm)	Note
GA14DE/GA16DE	800–900	Inductive type
SR20DE	500–600	Variations are possible ±10%
QG15DE/QG18DE	700–800	Often there are fakes with low resistance

Method 3: Voltage check (for inductive sensors)

Set the multimeter to mode AC 200 mV and connect the probes to the sensor terminals. Quickly move a screwdriver or metal object near the core - a working sensor should produce voltage surges 0.3–1 V. If there is no signal, the sensor is faulty.

Inspect the sensor for cracks and dirt|

Check the resistance with a multimeter|

Make sure the flywheel ring gear is not damaged|

Clean the connector contacts from oxidation -->

Crankshaft sensor errors on Nissan Sunny: decoding codes

If the dashboard lights up Check Engine, the first step is to count the errors. On Nissan Sunny this can be done:

• 🔧 Through on-board computer (if there is a self-diagnosis function, press and hold the daily mileage reset button with the ignition on).
• 🔧 With help scanner ELM327 (connects to connector OBD-II under the steering wheel).
• 🔧 Manually (by Check Engine light flashing - more details in the spoiler below).

The most common errors associated with DPKV:

Error code	Description	Possible reason
P0335	Crankshaft position sensor circuit malfunction	Wire break, contact oxidation, sensor malfunction
P0336	Crankshaft Sensor Range/Performance Out of Standard	Mechanical damage to the sensor or flywheel ring
P0320	Engine speed sensor circuit malfunction	Wiring or ECU problems
P0300	Multiple Cylinder Misfire (multiple misfires)	An indirect sign of a malfunction of the DPKV (the computer “does not see” the position of the shaft)

How to read errors without a scanner (Check Engine flashing method)

1. Turn on the ignition (do not start the engine).

2. Press and hold the trip mileage reset button (on the dashboard).

3. After 5 seconds, release the button - the Check Engine light will start flashing.

4. Series of flashes correspond to error codes:

- For example, 3 long + 3 short = error **P0335**.

5. To reset errors, disconnect the battery for 10 minutes or use a scanner.

⚠️ Attention: If after replacing the sensor the error P0335 remains, check wiring integrity from the sensor to the ECU. On Nissan Sunny The wires near the exhaust manifold often fray - the insulation melts due to high temperature.

Replacing the crankshaft sensor on a Nissan Sunny: step-by-step instructions

If diagnostics confirm a faulty DPKV, it must be replaced. On Nissan Sunny it can be done in 20–30 minutes no pit or lift. You will need:

• 🔧 Key on 10 mm or 12 mm (depending on engine model).
• 🔧 Screwdriver with a flat blade (for disconnecting the connector).
• 🔧 New sensor (original or high-quality analogue).
• 🔧 WD-40 or alcohol (to clean contacts).

Step by step process:

1. Disable battery weight (disconnect the negative terminal).
2. Find the sensor (see section “How the sensor works”) and clean it of dirt.
3. Disconnect the connector by pressing the latch (do not pull the wires!).
4. Unscrew the mounting bolt and remove the sensor.
5. Install the new sensor, tighten the bolt firmly 8–10 Nm.
6. Connect the connector and check the reliability of the contact.
7. Connect the battery and start the engine.

Important details:

• 🔹 The gap between the sensor and the ring gear must be 0.5–1.5 mm. If it is larger, place a washer.
• 🔹 Do not use sealant during installation - it may get on the sensitive element.
• 🔹 After replacement, clear errors via a scanner or by disconnecting the battery.

Original articles and analogues: what to choose for Nissan Sunny

When purchasing a new crankshaft sensor for Nissan Sunny the main thing is don't fall for a fake. The original sensors serve 100,000+ km, while cheap analogues can fail after 10,000–20,000 km. Below is a table with verified articles:

Engine model	Original article	High-quality analogues	Approximate price (RUB)
GA14DE/GA16DE	23731-4M000 or 23731-4M010	Blue Print ADG02303, Febi 23731	1 800–3 500
SR20DE	23731-40X00 or 23731-40X01	Hella 6PT 009 105-021, Bosch 0 261 210 115	2 200–4 000
QG15DE/QG18DE	23731-5M500	Denso 550-0101, NGK NTK CKP101	2 000–3 800

What to look for when purchasing:

• 🔹 The original sensor must have Nissan markings and article number.
• 🔹 The packaging should not have any traces of opening.
• 🔹 Check the resistance before installation (see section "Diagnostics").

⚠️ Attention: There are often sensors on the market with increased resistance (for example, 1200 ohms instead of 800 ohms). Such parts quickly fail due to overheating. Check the parameters before purchasing!

Frequently asked questions about the crankshaft sensor on Nissan Sunny

Is it possible to drive with a faulty crankshaft sensor?

No. If the sensor fails completely, the engine won't start. If it works intermittently, the engine will “triple”, lose power and consume more fuel. Driving for a long time in this mode can lead to damage to the catalyst or engine overheating.

How to distinguish an original sensor from a fake?

Original sensor Nissan has:

• Clearly marked with article number and logo.
• Smooth plastic body without burrs.
• Metal core without traces of corrosion.
• Resistance corresponding to the table in the article.

Counterfeits are often lighter in weight and have blurry markings.

What should I do if the P0335 error remains after replacing the sensor?

Possible reasons:

• Malfunction postings (check the circuit from the sensor to the ECU).
• Damage ring gear on the flywheel.
• Malfunction ECU (rarely, but it happens).
• Incorrect gap between the sensor and the ring.

Check all items in order.

Is it possible to clean the crankshaft sensor?

Yes, but only sensing element (core). Use:

• Alcohol or WD-40 (without aggressive solvents!).
• A soft brush or cotton swab.

If the sensor body is cracked or the resistance is not up to standard, cleaning will not help; replacement is required.

What other sensors can cause similar symptoms?

Symptoms of DPKV malfunction often coincide with the following problems:

• 🔹 Camshaft sensor (CMP).
• 🔹 Knock sensor.
• 🔹 Ignition coils or high-voltage wires.
• 🔹 Fuel pump or injectors.

For accurate diagnosis be sure to read errors scanner.