Your Selected Vehicle
Parts for your 2002 Nissan Bluebird-Camshaft sensor
Explore 4WD & Adventure
2002 Nissan Bluebird camshaft sensor: what it does, where it lives, and how to look after it
Based on technical sources including the Nissan Factory Service Manual for the Bluebird Sylphy/Bluebird G10 series (EC section, 2000–2005) and common OBD-II diagnostic references used by workshops, the 2002 Nissan Bluebird is fitted with a camshaft position sensor (often called the “PHASE” sensor by Nissan). These references detail ECM strategies that rely on both camshaft and crankshaft signals for sequential fuel injection, ignition timing, and variable valve timing (where equipped), along with fault codes such as P0340/P0345 specifically tied to the cam sensor circuit. So yes—this model does use a camshaft sensor.
On the 2002 Bluebird, the camshaft sensor sits on the cylinder head near the timing chain end. Its job is to tell the ECU exactly where the camshaft is in its rotation, so the engine can fire each injector and spark plug at the right moment. Paired with the crank sensor, it gives the ECU precise phase and speed info for smooth starts, clean idle, decent economy, and solid power.
When the cam sensor starts to go out, drivers may notice a longer crank before starting, rough running, flat spots, or the check engine light. Typical symptoms include:
- Hard starting or stalling at idle
- Misfire-like hesitation and poor fuel economy
- Check engine light with codes like P0340/P0345
It’s not a routine replacement item, but it’s smart to add a quick inspection at service time. Check the sensor connector and loom for brittle insulation, oil ingress, or corrosion. Oil leaks from the rocker cover can wick into the plug and upset the signal, so fixing any seepage early prevents drama. A scan tool that shows cam/crank synchronisation, or an oscilloscope if your workshop has one, helps confirm the diagnosis before swapping parts.
Replacement is straightforward for most DIYers:
- Disconnect the battery and unplug the sensor.
- Remove the retaining bolt, then twist and pull the sensor out—don’t lever hard on the plastic body.
- Lightly oil the new O-ring, seat the new sensor squarely, and refit the bolt and connector.
Use a quality OEM-equivalent sensor to avoid intermittent faults. After replacement, clear codes and verify cam/crank sync and stable idle under the bonnet. If the light returns, recheck wiring and earths—on these Nissans, a dodgy connector is as common as a dead sensor.
Popular questions about 2002 Nissan Bluebird camshaft sensor
Where is the camshaft sensor located on a 2002 Bluebird?
It’s mounted on the cylinder head at the timing chain end, typically accessible from the top of the engine under the bonnet. Look for a small, single-bolt sensor with a two- or three-pin plug near the cam cover. Some models may have limited space, so moving a hose or cover out of the way helps.
What fault codes point to a bad camshaft sensor?
Common codes are P0340 or P0345 for the camshaft position sensor circuit. However, wiring damage, oil-contaminated connectors, or a weak crank sensor can trigger similar codes. Always check the loom and connector condition before condemning the cam sensor.
Is it safe to drive with a failing camshaft sensor?
The car may run but can be hard to start, hesitate, or stall. Short trips to a workshop are usually fine, but extended driving isn’t recommended—fuel economy and drivability suffer, and it can leave the driver stranded if it fails completely.
