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Parts for your 2004 Nissan Serena-Camshaft sensor
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2004 Nissan Serena Camshaft Sensor
Yes, the 2004 Nissan Serena uses a camshaft position sensor. This is documented in the Nissan C24 Serena Factory Service Manual (EC/EM sections, 2003–2005 printings), which lists a “Camshaft Position Sensor (PHASE)” for the QR20DE/QR25DE petrol and YD22DDTi diesel variants. The Nissan FAST electronic parts catalogue for the C24 model series likewise includes a camshaft sensor for these engines. Those technical sources make the camshaft sensor directly relevant to this vehicle.
On a 2004 Serena, the camshaft sensor tells the engine control module exactly where the intake cam is in its rotation. That lets the ECU fire the injectors in the right order, time the spark accurately on the petrol engines, and manage the intake valve timing system. On the diesel YD22DDTi, it’s crucial for injection timing and smooth starting. If the sensor goes wonky, the Serena can be hard to start, feel gutless, stumble, or stall, and it’ll often pop a check-engine light with codes like P0340 or P0345. The QR petrol cams are typically read at the front of the cylinder head near the timing chain, the diesel location is also at the timing end but differs slightly by engine.
- Typical symptoms: long crank, intermittent no-start, rough idle, misfire under load, poor fuel economy, and stored cam sensor fault codes.
- Why it matters: correct cam signal means crisp throttle response, proper valve timing control, and clean emissions.
There’s no scheduled replacement interval in Nissan’s service literature, it’s a “replace on failure” item. As part of servicing, it’s smart to eyeball the wiring loom under the bonnet for rubbing, oil wicking into the connector, or broken tabs. Keep the plug clean and dry, and fix any rocker cover leaks that can contaminate the sensor O-ring.
- Disconnect the battery and remove the engine cover for access.
- Unplug the sensor, remove the retaining bolt, and pull the sensor straight out.
- Lightly oil a fresh O-ring, install the new sensor squarely, and snug the bolt (about 8–10 N·m is typical).
- Reconnect, clear codes, and road test. If a rough idle lingers, check for other faults rather than blaming the new sensor.
Use a quality OEM or reputable aftermarket sensor, earlier plastic-bodied sensors on some Nissan engines were superseded by more robust designs. Many tech bulletins across Nissan’s QR/YD families reinforce correct diagnosis first—rule out wiring and timing issues before binning the sensor.
Popular questions about the 2004 Nissan Serena camshaft sensor
Where is the camshaft sensor on a 2004 Serena?
The QR petrol engines usually have it at the front of the cylinder head on the timing chain side, just under the rocker cover lip. The YD22 diesel positions it at the timing end as well, but access can vary slightly by layout. A torch and a small ratchet make life easier.
What fault codes point to a bad camshaft sensor?
Common ones are P0340 or P0345, sometimes along with crank sensor codes. Do a proper check: verify 5V supply, ground integrity, and signal at the plug. On these cars, wiring damage near the top of the engine and oil in the connector are frequent culprits.
Should the cam and crank sensors be replaced together?
Not mandatory. If diagnostics prove the cam sensor is the only issue, replace just that. That said, if the Serena has high kilometres and intermittent sync faults, some techs will pre-emptively do both to avoid a comeback.
