Parts for your 2001 Nissan Primera-Crank angle sensor

2001 Nissan Primera crank angle sensor

Based on factory documentation and trade data, a crank angle sensor is absolutely relevant and fitted to the 2001 Nissan Primera. Nissan’s Primera P11-144 (1999–2002) and early P12 platforms are specified with a crankshaft position sensor (often termed a crank angle sensor) in the Engine Control (EC) section of the Nissan Service Manual. The Haynes Nissan Primera Petrol & Diesel (1996–2006) manual and Autodata service information also list crank and cam position sensors for 2001 models. On some SR-series engines this function is provided via an optical sensor in the distributor (called a CAS by Nissan), while QG/QR/YD engines use a dedicated crankshaft position sensor at the block/bellhousing.

On a 2001 Primera, the crank angle sensor feeds the ECU with precise crank rotation and speed so it can time spark and fuel perfectly. Missed or noisy signals throw timing out, leading to rough running, hard starting or stalling. Typical fault codes a workshop might see are P0335–P0339 for the crank sensor and, if related, P0340–P0344 for the cam sensor. It’s a small part that has a big say in how smoothly the Primera pulls away and idles at the lights.

There’s no scheduled replacement interval for the sensor, it’s a replace-on-failure item. As part of regular servicing, it’s smart to:

• Visually check the sensor connector and loom for oil wicking, heat damage or chafing.
• Confirm the sensor is seated fully with its O-ring intact and clean metal-to-metal mounting.
• Scan for stored or pending fault codes and review live data for RPM dropouts during cranking.

Replacement is straightforward for most engines: disconnect the battery, unplug the connector, remove the single retaining bolt, twist and withdraw the sensor, lightly oil the new O-ring, fit and tighten the bolt snugly, reconnect and clear codes. On SR engines with a distributor-mounted CAS, alignment marks should be followed carefully. After replacement, many ECUs self-adapt, if the idle’s a bit off, an idle learn procedure may help. Using a quality OEM-equivalent sensor is recommended, as cheap units can give weak signals and recurring faults.

If the Primera is showing intermittent cut-outs, tachometer drop to zero while cranking, or it only fires once it finally catches, a tired crank angle sensor is high on the suspect list. Sorting it early prevents no-start dramas and keeps fuel economy and emissions in check.

FAQs

Where is the crank angle sensor on a 2001 Primera?

On QG/QR petrol engines it’s typically at the back of the engine near the bellhousing, reading the flywheel/flex-plate. SR engines may use an optical CAS in the distributor on the cylinder head. Diesel YD engines mount the CKP sensor at the front or side of the block near the crank pulley. Access ranges from easy from above to easier from underneath with the splash shield off.

What symptoms point to a failing crank angle sensor?

Hard starting, random stalling at idle, misfires, a dead tach during cranking, and stored codes like P0335 are common. It may run fine cold and play up hot as internal electronics break down. Poor signal quality can also trigger cam sensor codes, so it’s worth checking both.

Does a new sensor need programming?

Generally no. Fit the sensor, clear codes and road test. If the idle hunts or the throttle feels odd, an idle air volume learn with a scan tool can tidy it up, but most cars settle quickly after a short drive cycle.