Parts for your 2011 Nissan Pulsar-Camshaft sensor

2011 Nissan Pulsar camshaft sensor — fitted and worth keeping happy

Based on Nissan factory service information for the small AU/NZ market models of this era (HR16DE and MR20DE petrol engines used across Tiida/Pulsar lines) and major parts catalogues used by dealerships and independent workshops, the 2011 Nissan Pulsar uses a camshaft position sensor. It’s a key input the engine control module relies on for sequential fuel injection, coil-on-plug ignition timing, and variable valve timing control.

For a 2011 Nissan Pulsar, the camshaft sensor’s job is to track the exact position and speed of the camshaft, so the ECU knows which cylinder is on compression and can fire injectors and coils at the right moment. Working alongside the crankshaft sensor, it keeps starts snappy, idle smooth, and fuel economy on point. It’s also vital for the Pulsar’s variable valve timing strategy, helping the ECU shift cam timing for better torque and efficiency.

When the camshaft sensor starts to go off, the car may crank longer before it fires, idle roughly, stumble under load, or drop into limp mode. The check engine light often logs codes like P0340/P0341. Because the ECU can sometimes fall back to crank-sensor-only logic, the engine might still run, but it won’t be happy.

• Common symptoms: hard starting, misfires, poor fuel economy, flat spots, stalling, MIL on (P0340/P0341).
• Quick checks: inspect the connector for oil ingress or damaged pins, confirm clean engine earths, and verify oil leaks aren’t wicking into the plug.

There’s no scheduled maintenance for the camshaft sensor itself, but good servicing protects it. Sticking to the correct oil grade and intervals helps keep the timing gear and cam signal clean. During servicing of your 2011-Nissan-Pulsar camshaft-sensor, a tech will usually scan for fault codes and glance over the wiring at the cylinder head.

Replacement is straightforward on these engines: the sensor typically sits at the timing chain end of the head (intake side on most variants), held with a single small bolt and sealed by an O-ring. Fit a quality OEM-equivalent sensor, lightly oil the O-ring, and tighten the bolt to about 9 N·m. After installation, clear the codes and perform an idle air volume learn if idle is unstable. If faults persist, confirm crank sensor health and harness integrity with a scope, as the two signals work as a pair.

• Tip: if oil has made its way into the harness, fix the source leak and clean the connector, otherwise the new sensor may be short-lived.

Popular questions

Where is the camshaft sensor on a 2011 Nissan Pulsar?
It’s usually mounted on the cylinder head at the timing chain end, most often on the intake cam side. Some engine variants may use one sensor, others can have a second on the exhaust cam. Access is under the bonnet near the top of the engine, with a single retaining bolt and a plug.

Will a 2011 Pulsar run with a faulty camshaft sensor?
Often it will start and run in a fallback mode using the crank sensor, but expect longer cranking, reduced performance, and a lit check engine light. It’s best to fix it promptly to protect fuel economy and drivability.

Does a new camshaft sensor need programming?
No coding is typically required. After replacement, clearing fault codes is recommended. If idle is uneven, an idle air volume learn with a scan tool can help the ECU settle quickly.