Parts for your 2013 Nissan Serena-Camshaft sensor

2013 Nissan Serena camshaft sensor — what it does and when to replace it

The 2013 Nissan Serena (C26 series, including S-HYBRID) is fitted with a camshaft position sensor. Technical references such as the Nissan Serena C26 Service Manual (Engine Control, EC) describe a Camshaft Position Sensor (PHASE) used for sequential fuel injection and CVTC/variable valve timing control. Nissan diagnostic documentation also lists DTCs like P0340/P0341 for the cam sensor circuit on MR20-series petrol engines. In short, it’s absolutely relevant on this model and central to smooth starting, clean running, and decent fuel economy.

In everyday terms, the camshaft sensor tells the engine computer exactly where the intake cam is in relation to the crank. That timing “picture” lets the ECM fire injectors in sequence, dial in ignition timing, and advance or retard the cam for power or efficiency. When it’s healthy, the Serena starts crisply, idles neatly, and cruises without fuss across Aussie and Kiwi kilometres.

When the sensor or its wiring plays up, drivers may notice:

• Long crank, misfire, or a no-start when hot or cold
• Rough idle, stumble off the line, or limp-home behaviour
• Poor fuel economy and a lit check engine lamp (often P0340/P0341)

The sensor itself is a simple, sealed Hall-effect unit mounted at the cylinder head near the cam sprocket. There’s no set replacement interval, but it’s smart to inspect the connector and loom during routine servicing—look for oil wicking into the plug, brittle insulation, or damage from under-bonnet heat. If the Serena throws a cam sensor fault, confirm live data and cam/crank correlation with a scan tool before condemning parts, the crank sensor and stretched timing chain can mimic similar symptoms.

Replacement is a straightforward driveway job for many owners: disconnect the battery, remove the engine cover, unplug the connector, undo the retaining bolt, and ease out the sensor. Swap the O-ring, lightly oil it, seat the new sensor, and torque the bolt snug with a small spanner. Clear codes and, if required by the manual, perform an idle air volume learn. Quality matters here—use a genuine or reputable aftermarket sensor to avoid repeat faults. Labour time is typically 0.3–0.6 hours, and it’s wise to pair the fix with a quick check for software updates and any timing-chain rattle on cold start.

Popular questions about the 2013 Nissan Serena camshaft sensor

Where is the camshaft sensor on a 2013 Serena?
It’s mounted on the cylinder head, facing the camshaft trigger wheel near the timing chain end. Lift the engine cover and look at the outer end of the intake cam area, you’ll see a small sensor with a single retaining bolt and a two- or three-pin plug.

What are the common symptoms and codes?
Expect hard starting, rough idle, flat spots, and the check engine lamp. Typical fault codes are P0340 or P0341 for the camshaft position sensor circuit or performance. Always inspect the wiring and verify cam/crank sync data before replacing the sensor.

Is it safe to keep driving with a faulty cam sensor?
It may run, but it can cut out, drop into limp mode, and waste fuel. That’s not ideal on a school run or a long haul. Get it diagnosed promptly, replacement is quick and relatively inexpensive compared with being stranded.