Parts for your 2016 Nissan Navara-Knock sensor

2016 Nissan Navara (D23) knock sensor — is it actually there?

Short answer for Australian and New Zealand models: the 2016 Navara D23 2.3‑litre diesel (YS23DDT/YS23DDTT) doesn’t run a knock sensor. That’s not a guess — it comes straight from the factory documentation. The Nissan Navara D23 Electronic Service Manual for the diesel Engine Control System shows all the engine management sensors in the component locations and the wiring diagrams, and a knock sensor isn’t listed. Nissan’s FAST parts catalogue backs that up by listing a knock sensor only for petrol QR25DE variants (sold in other markets), not for the YS23 diesel fitted locally. The Renault‑Nissan YS23/M9T engine technical data also describes combustion control using pilot/main injection, rail pressure, and crank/cam timing, without a block‑mounted knock sensor.

Why isn’t a knock sensor used on the AU/NZ 2016 Navara diesel? Petrol engines need a knock sensor to catch detonation so the ECU can pull spark timing. The YS23 is a common‑rail diesel — it ignites fuel by compression, not spark — and a bit of “diesel knock” is normal. Instead of listening for detonation, the ECU trims injector timing and quantity (pilot and main injections), modulates rail pressure, boost and EGR using inputs like crank and cam position, mass airflow, manifold pressure, coolant and fuel temperature, and exhaust gas temperature. For this engine family, a dedicated knock sensor isn’t part of the strategy, which keeps the hardware simpler and the calibration laser‑focused on injection control.

Seeing a P0325‑style knock‑sensor code on a scan tool with this model usually points to an incorrect vehicle/engine selection in the tool or a generic OBD profile, not a missing part on the engine. If the Navara is a rare petrol QR25DE in another market, that’s a different story — those can have a knock sensor on the block under the intake — but that’s not the AU/NZ 2016 diesel.

Technical sources referenced (no external links provided):

• Nissan Navara D23 Electronic Service Manual (2015–2019), Engine Control System – Diesel (YS23DDT/YS23DDTT): Component Parts Location and Wiring Diagram (no knock sensor listed).
• Nissan FAST parts catalogue for D23: knock sensor parting shown for QR25DE petrol variants only, none for YS23 diesel.
• Renault–Nissan YS23/M9T engine technical data/workshop information: injection and combustion control described without a knock sensor.

FAQs

Does a 2016 Nissan Navara (D23) have a knock sensor?
For AU/NZ‑delivered 2016 Navara diesels (YS23DDT/YS23DDTT), no. The factory service manual and parts catalogue don’t list one. Some overseas petrol QR25DE versions can have a knock sensor, but that’s a different engine not sold new here.

Why don’t diesels like the YS23 use a knock sensor?
Diesels don’t rely on spark, so the ECU doesn’t need to “pull timing” for detonation. The YS23 manages combustion noise and pressure rise with precise injection timing/quantity, rail pressure, boost and EGR, guided by sensors such as crank/cam position, MAF, MAP/boost, ECT, fuel temp and EGT. That control strategy makes a separate knock sensor unnecessary on this engine.

What should be checked if there’s a rattly noise or “pinging” under load?
On a YS23, look at fuel quality, injector balance and pilot injection performance, intake/boost leaks, EGR operation, and timing‑chain or accessory noises. Useful fault areas and codes include MAF range (P0101), boost/pressure correlation (P0236/P2263), rail pressure control (P0089/P0087), and injector circuit/compensation issues. A proper scan with the correct engine profile under the bonnet will save time.