Nissan Sunny FB15 with engine GA15DE (1.5 l) or its modification GA16DE (1.6 l) - a reliable, but already old car, where the crankshaft position sensor (DPKV) often becomes a source of problems. Its malfunction leads to misfires, unstable engine operation or complete startup failure. In this article - exact coordinates of the sensor location on the FB15 cylinder block with photographs and diagrams, as well as practical advice on diagnostics and replacement.

Owners Sunny this generation (1990–1995) often encounter difficulties in finding the DPKV: it is hidden under the intake manifold or disguised as other elements. We will look at how to identify it visually, what tools will be needed for dismantling, and why even a working sensor can fail due to contamination or improper clearance.

Design and role of the crankshaft sensor in Nissan Sunny FB15

Crankshaft position sensor (DPKV, aka crankshaft position sensor) in FB15 - this is inductive sensor, which reads pulses from the ring gear on the flywheel or crankshaft pulley. This data is transmitted to ECU (electronic control unit), which synchronizes the operation of the ignition and fuel injection systems. Without the correct signal from the DPKV, the engine will either not start or will work intermittently.

Features of DPKV on GA15DE/GA16DE:

  • 🔧 Sensor type: magnetic (inductive), does not require external power.
  • 📏 Gap between sensor and ring gear: 0.5–1.5 mm (critical for stable operation!).
  • 🔌 Connector: 2-pin (signal + ground), wires often rub against nearby elements.
  • 🛠️ Resource: 100–150 thousand km, but may fail earlier due to vibrations or corrosion.

On Sunny FB15 DPKV has no moving parts, but its operation depends on the cleanliness of the ring gear surface and the integrity of the wiring. For example, oil drips on the sensor or metal shavings on the crown can simulate a malfunction of the sensor itself.

📊 What engine does your Nissan Sunny FB15 have?
  • GA15DE (1.5 l)
  • GA16DE (1.6 l)
  • Other engine
  • I don't know

Where exactly is the crankshaft sensor located? Nissan Sunny FB15?

On engines GA15DE/GA16DE crankshaft sensor is located on the cylinder block on the gearbox side, next to the flywheel. More precisely - under the intake manifold, towards the rear of the engine (interior side). It can easily be confused with the camshaft sensor (DPRV), which is located higher on the block head.

Visual guidelines for searching:

  1. Remove decorative engine cover (if any).
  2. Disconnect inlet pipe from the collector for better access.
  3. Search cylindrical box with wire, secured with one bolt to 10 mm.
  4. Should be nearby flywheel ring gear (visible through the viewing window in the block).
Photo/diagram Description
📷 (DPKV mounting location) Bolt securing the sensor to the block (marked in red). The wire goes up to the wiring harness.
🔍 (ring gear) The ring on the flywheel with which the sensor interacts. The gap between them is 0.5–1.5 mm.
⚡ (DPKV connector) 2-pin connector (black or grey). Often oxidizes or grinds.

Important! On some versions FB15 (for example, for the Japanese market) the sensor can be moved 2–3 cm closer to the front of the engine. If you don’t find it in the standard place, check availability second mounting bolt on the block.

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Before dismantling the sensor, clean its surface from oil and dirt - this will help prevent debris from entering the cylinder block.

Signs of DPKV malfunction: when is it time to check?

Faulty crankshaft sensor Nissan Sunny FB15 manifests itself in different ways, but there is 5 Key Symptomsthat cannot be ignored:

  • 🚗 Engine won't start (the starter turns, but there is no spark or injection).
  • ⚡ Misfires at idle or under load (especially after warming up).
  • 📉 Floating speed (from 500 to 1500 rpm without pressing the gas).
  • 🔥 Lights up on the dashboard Check Engine (error code P0335 or P0336).
  • 🛑 Engine stalls when driving and won't start until it cools down.

However, these same symptoms may indicate problems with ignition coils, fuel pump or ECU. To confirm the guilt of DPKV, diagnostics are needed.

⚠️ Attention! If the engine Sunny FB15 suddenly stalled and will not start, and the crankshaft sensor was recently replaced - check connector polarity. Mixed-up contacts can block startup.

How to check the crankshaft sensor for Nissan Sunny FB15?

Diagnosis of DPCV includes 3 stages: visual inspection, resistance check and signal test with an oscilloscope (or multimeter in AC voltage mode). To get started, prepare your tools:

Ohmmeter (multimeter) with 200 Ohm mode|Flat head screwdriver|WD-40 or contact cleaner|Flashlight for inspecting the crown|Jack (if you need to check with the engine running)-->

Step 1. Visual inspection

Disconnect the sensor connector and inspect:

  • 🔌 Contacts for oxidation or corrosion (clean alcohol solution).
  • 🧲 Sensor surface for the presence of metal shavings (attracted by a magnet).
  • 🔧 Integrity of the wire (often rubs against the intake manifold bracket).

Step 2: Check Resistance

Connect an ohmmeter to the sensor terminals. Normal resistance for GA15DE/GA16DE:

  • 📊 500–700 Ohm at room temperature.
  • 🔥 If resistance less than 400 ohms or more than 900 Ohm - the sensor is faulty.

Step 3: Check Signal (Advanced Method)

For this you need oscilloscope or multimeter in mode AC 200mV. Connect the probes to the sensor terminals and turn the starter. A working DPKV will issue sine wave with amplitude 0.3–1 V. The absence of a signal or its randomness is a sign of a malfunction.

What to do if you don't have an oscilloscope?

If you don't have an oscilloscope, you can use LED probe (12V with 1k resistor). Connect it to the signal wire of the sensor and turn the starter - a working DPKV will make the LED blink with a frequency proportional to the crankshaft speed.

Step-by-step instructions for replacing DPKV with Nissan Sunny FB15

Replacing the crankshaft sensor with FB15 takes 20–40 minutes and does not require special skills. The main thing is to comply gap between sensor and ring and do not damage the connector. Algorithm of actions:

  1. Disconnect the battery (removing the negative terminal).
  2. Disconnect the connector DPKV by pressing the latch.
  3. Unscrew the fastening bolt (key to 10 mm).
  4. Remove the sensor, rocking it from side to side (do not use force!).
  5. Clean the seat from dirt and oil.
  6. Install a new sensor, making sure that the gap between it and the crown is 0.5–1.5 mm.
  7. Tighten the bolt moment 8–10 Nm (do not overtighten!).
  8. Connect the connector and check engine operation.
⚠️ Attention! If after replacing the DPKV engine Sunny FB15 still won't start, check:
  • 🔌 Wiring integrity from the sensor to the ECU (often grinds near the exhaust manifold).
  • 🧲 Ring gear condition — chipped or worn teeth will disrupt the signal.
  • 🔧 Correct installation — the sensor should fit tightly, without distortion.
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Even a new crankshaft sensor may not work if the gap between it and the ring exceeds 1.5 mm. Always check the distance with a feeler gauge!

Common mistakes when replacing DPKV and how to avoid them

Owner experience Nissan Sunny FB15 shows that most problems after replacing DPKV associated with negligence or ignorance of the nuances. Here are the typical mistakes:

  • 🔧 Using a non-original sensor. Cheap analogues (for example, from NoName-brands) often have incorrect resistance or magnetic induction. Recommended Manufacturers: Nissan (23731-4M500), Hitachi, Denso.
  • 📏 Failure to maintain clearance. If the sensor is recessed too deep or, conversely, protrudes, the signal will be weak or distorted.
  • 🔌 Connector damage when disconnected. The contacts in the block are fragile - pull by the body, not the wires!
  • 🛑 Forgetting to reset ECU errors after replacement. Even a working sensor may not work until the code is reset P0335 (for example, disconnecting the battery for 10 minutes).

Another common problem is ingress of metal shavings into the sensor seat. This happens if you do not clean the block before installing a new DPKV. The chips can short-circuit the sensor winding or disrupt its magnetic field.

Advice from the experts: if after replacing the DPKV the engine starts but is unstable, check condition of high-voltage wires and ignition coils. Malfunctions in the ignition system can masquerade as problems with the crankshaft sensor.

FAQ: Frequently asked questions about DPKV on Nissan Sunny FB15

Is it possible to drive with a faulty crankshaft sensor?

No. The engine will either not start or will operate with critical interruptions. In rare cases (if the sensor produces an intermittent signal), the machine may move, but this will lead to increased wear of the catalyst And engine overheating.

What error code indicates problems with DPKV?

On Sunny FB15 most often found:

  • P0335 — malfunction of the DPKV circuit;
  • P0336 — the sensor signal goes beyond acceptable limits;
  • P0320 — a problem with the sensor signal (may be caused by contamination of the crown).

How much does the original crankshaft sensor for FB15 cost?

Prices for 2026:

  • Original Nissan (23731-4M500): RUB 3,500–5,000;
  • Hitachi or Denso: RUB 2,500–3,500;
  • Analogues (for example, Blue Print): RUB 1,200–2,000 (risk of defects is higher).

Check when purchasing resistance and availability magnetic core.

Is it possible to clean the crankshaft sensor instead of replacing it?

Yes, but only if the problem is surface contamination or oxidation of contacts. Use:

  • 🧴 Isopropyl alcohol for cleaning the body;
  • 🧲 Magnet for removing metal shavings;
  • 🔧 WD-40 for processing the connector.

If the sensor has mechanical damage or incorrect resistance - replacement is required.

Where else could the crankshaft sensor be on the FB15 if it is not in the standard location?

On some modifications Sunny FB15 (for example, with automatic transmission or for export to Asia) the sensor can be shifted:

  • 🔍 Under the starter (less common, but occurs);
  • 🔧 On the flywheel cover (requires removal of box for access);
  • 📏 To the right of the block (on models with air conditioning).

If you do not find the sensor, check with electrical circuit for your configuration.