Parts for your 1995 Nissan Primera-Crank angle sensor

1995 Nissan Primera crank angle sensor — what it does and how to look after it

Yes, the 1995 Nissan Primera does use a crank angle sensor. On petrol P10 models like the GA16DE 1.6 and SR20DE 2.0, the sensor is an optical unit built into the distributor, often called a CAS (Crank Angle Sensor) or camshaft position sensor. This is documented in the Nissan Factory Service Manual (EC section) for the P10 and echoed in workshop texts such as the Haynes Primera 1990–1999 manual. Some later or market-specific cars gained an additional crankshaft sensor, but for a 1995 Primera the key timing signal comes from that distributor-mounted optical sensor.

The crank angle sensor’s job is to tell the ECU exactly where the engine is in its rotation and how fast it’s spinning. It reads a slotted disc inside the distributor to give both position and RPM, so the ECU can fire the injectors and spark at the right time. When it’s spot on, the Primera starts promptly, idles smoothly and pulls cleanly through the revs. When it’s flaky, you’ll cop hard starting, intermittent stalling, flat spots, a dead tach, or a no-start. On OBD1 cars, the ECU often logs Code 11 for a CAS fault.

Servicing-wise, there’s no regular replacement interval, but a bit of care goes a long way. Oil inside the distributor (from a tired shaft seal) or dust on the optical window can mess with the signal. Heat and old wiring plugs also cause dramas. If the sensor fails, many techs replace the whole distributor for reliability and ease, though the sensor can be swapped on some units if the parts are available.

• Before removal, mark the distributor’s position and rotor orientation to keep base timing close.
• Inspect the plug, terminals and earths, clean and reseat before condemning the sensor.
• If oil is present inside the distributor, fix the leak or replace the distributor assembly.
• After refit, warm the engine and set base ignition timing with a timing light as per the FSM (typically around 15° BTDC for many petrol variants), following the proper idle/TPS procedure.
• Use quality parts, cheap distributors can cause misfires or erratic timing.

Look after the CAS and the Primera will keep clocking up the kilometres without fuss.

Popular questions

Where is the crank angle sensor on a 1995 Nissan Primera?
On most 1995 petrol models (GA16DE and SR20DE), it’s integrated into the distributor on the end of the camshaft. Remove the distributor cap and you’ll find the optical sensor and slotted disc inside. Diesel variants differ and use separate timing references.

What are the symptoms of a failing crank angle sensor?
Hard starting, no-start when hot, intermittent stalling, misfires, a dead or jumpy tacho, and poor fuel economy are common. The ECU may store Code 11 on OBD1 systems. If oil has crept into the distributor, the symptom pattern can be very intermittent.

Can it be cleaned or does it need replacing?
Sometimes cleaning the connector and carefully removing light dust helps. If the optical window or disc is contaminated by oil, or the sensor’s electronics have failed, replacement is the go. Many workshops fit a complete distributor for a durable fix and then reset base timing.