Parts for your 2010 Nissan Serena-Camshaft sensor

2010 Nissan Serena Camshaft Sensor — What It Does and When to Replace

Yes, the 2010 Nissan Serena uses a camshaft position sensor. Technical references that confirm this include the Nissan Serena C25/C26 Factory Service Manual (Engine Control – EC section), which details the “Camshaft Position Sensor (PHASE)” and related diagnostics (DTCs such as P0340/P0341), and the Nissan FAST Electronic Parts Catalogue, which lists a camshaft position sensor for the MR20DE engine commonly fitted to 2010 Serena models. These sources show the sensor is integral to engine management on this vehicle.

On the 2010 Serena, the camshaft sensor’s job is to tell the ECU exactly where the intake cam is in its rotation, so fuel injection and ignition timing can be synced with the crankshaft. It’s also used to manage variable valve timing on the MR20DE. Without a clean signal, the engine can struggle to start, run roughly, drop power, or throw the check engine light. It’s a small part with a big say in how smoothly the Serena gets down the road.

It isn’t a scheduled “replace-by-date” item, but it’s worth inspecting during servicing. Typical symptoms of a crook cam sensor include extended cranking, intermittent stalling when hot, hesitation on take-off, rough idle, and worse fuel economy. A scan tool will often reveal DTCs like P0340 or P0341, and live data may show an erratic or missing cam signal.

Replacement is straightforward DIY for many owners, but always follow workshop practices. The sensor usually sits on the cylinder head near the timing chain end, under the top engine cover. Basic steps are: disconnect the battery, unplug the sensor, undo the hold-down bolt, swap the sensor (lightly oil any O-ring), refit and tighten to manufacturer spec (around 10 N·m is typical—check the service manual), reconnect, clear codes, and road test. Using a genuine or quality OE-equivalent part helps avoid repeat faults.

Good servicing habits that help this sensor live a long life include keeping the top of the engine clean, checking the connector for oil intrusion or corrosion, ensuring harness clips are intact so the wiring doesn’t chafe, and verifying engine earths are sound. If the Serena has been hard to start or stalls at idle, a quick scan plus a visual once-over at the cam sensor and its wiring is a smart first move before chasing more complex causes.

• Common tell-tales: hard starting, random stalling, MIL on with P0340/P0341.
• Check wiring and connectors before condemning the sensor.
• After replacement, reset codes and confirm stable cam/crank sync on a scan tool.

Popular questions

Where is the camshaft sensor on a 2010 Nissan Serena?
On MR20DE-equipped Serenas, it’s mounted on the cylinder head at the timing chain end, typically on the intake cam side under the plastic engine cover. Access is from the top, unplug the connector and remove the small retaining bolt to lift it out.

Can they drive a 2010 Serena with a faulty camshaft sensor?
It might run using fallback strategies, but it can be hard to start, hesitate, or stall unexpectedly. That’s risky in traffic and can lead to misfires. Best bet is to diagnose and fix it promptly rather than pushing on with a dodgy signal.

Does the 2010 Serena have one or two camshaft sensors?
Most 2010 Serena MR20DE variants use a single camshaft position sensor on the intake cam. Exact fitment can vary by market and build, checking the VIN in the Nissan FAST EPC or the factory manual for the specific model code will confirm the count.