Parts for your 2008 Nissan Primera-Crank angle sensor

2008 Nissan Primera crank angle sensor (crankshaft position sensor)

Technical sources confirm the 2008-registered Nissan Primera (P12 series carry-over) is fitted with a crank angle sensor, commonly called the crankshaft position sensor. This is documented in the Nissan Primera P12 Factory Service Manual (EC section), reflected in Nissan service bulletins from the early 2000s concerning DTCs P0335/P0340 on QR, QG and YD engines, and supported by OEM catalogues (Hitachi/NTK) that list a dedicated crank sensor for Primera petrol and diesel variants.

The crank angle sensor is the engine’s timekeeper. Mounted at the gearbox bellhousing or timing cover (location varies by engine: QR20DE/QG18DE petrol and YD22DDTi diesel), it reads a toothed wheel on the crank to tell the ECU exactly where the pistons are and how fast they’re spinning. That live signal is what lets the ECU fire the spark and inject fuel at the right moment, sync with the cam sensor, and detect misfires. If it goes missing or erratic, the Primera can be hard to start, stall at idle, lose power, and log faults like P0335 or P0725. In many cases the engine won’t start at all.

There’s no scheduled replacement interval, but it’s smart to include the sensor and its connector in routine servicing. A quick visual check for oil wicking into the plug, cracked wiring near the rear of the engine/transaxle, or damage from road debris can save headaches later. Keeping nearby oil leaks sorted helps too, sensors don’t love being bathed in hot oil.

Replacement is straightforward for most engines. Disconnect the battery, raise the car safely, and locate the sensor (usually held with a single small bolt). Unplug, remove the bolt, twist the sensor out, lightly oil the new O-ring, and refit, nipping the bolt to factory spec. Route the loom exactly as original to avoid exhaust or driveshaft heat. After refitting, clear any fault codes and perform an idle/air volume learn if required by the engine family, many scan tools guide you through it. Using a quality OEM-equivalent sensor is worth it—cheap copies can give weak or noisy signals that cause intermittent faults.

Common clues it’s on the way out include a long crank when hot, sudden stalling at traffic lights, a dead tacho during cranking, and intermittent no-starts that magically resolve after a cool-down. If those sound familiar, a quick scan and live-data check will usually point straight at the crank angle sensor.

Popular questions about the 2008 Nissan Primera crank angle sensor

Where is the crank angle sensor on a 2008 Nissan Primera?

On most petrol models (QR20DE/QG18DE), it’s mounted low on the engine at the transmission bellhousing, reading the flywheel/flexplate. On the YD22DDTi diesel, it may sit near the front timing area. Access is typically from underneath with the splash shield removed.

What symptoms point to a failing crank angle sensor?

Expect intermittent stalling, long cranking when hot, sudden no-start, the tacho not moving during crank, and engine light with codes like P0335 or P0725. Because the ECU relies on this signal for spark and fuel timing, a bad sensor can mimic fuel or ignition faults.

Do I need to program anything after replacing the sensor?

The ECU generally learns on the fly, but it’s good practice to clear codes and perform an idle/air volume learn on applicable engines. If the Primera had a related Nissan software update in the past, ensuring the ECU is up to date can improve reliability and hot-start behaviour.