Timing and crank/cam sensorsGeneric OBD-II codeUrgency: Garage soon

P0366 on Nissan: causes and affected engines

P0366 means: camshaft position sensor "B" circuit: performance problem or out-of-range values (bank 1).^[1][2] Nissan has 9 documented faults that can trigger it, across 9 engines, including 2.5 dCi YD25, 0.9 TCe, 2.0 dCi and 1.2 TCe. Only a diagnosis can confirm the cause on your car.

Documented faults

that can trigger it

Engines

used by Nissan, with at least one of them

Nissan models

with at least one of these faults

Urgency

Garage soon

Reviewed on 29 October 20263 sources How we work

Documented faults in Nissan engines that can trigger P0366

Grouped by engine or model, from most to least important. These are faults with the variable valve timing actuator and with the timing chain: not all of them will necessarily set the code, and only a diagnosis confirms the cause on your car.

2.5 dCi YD25

In Navara D40 and Pathfinder R51

- Critical severityFrequency: CommonTimingTiming chain wear and failureThe single chain at the bottom of the YD25 (the one that drives the injection pump) is the engine's weak point: it stretches and, if it jumps or breaks, the engine usually ends up rebuilt or replaced. It is heard as a rattle.Appears at around 100,000 km

0.9 TCe

In Micra V

- Critical severityFrequency: OccasionalTimingTiming chain or tensioner failureThe 0.9 TCe's timing chain tensioner can lose effectiveness over time. It is a minority of cases, but when the chain jumps the damage is serious: there is a documented case with a complete engine replacement at 80,000 km.

2.0 dCi

In Qashqai I, X-Trail II and X-Trail III

- Critical severityFrequency: OccasionalTimingTiming chain wear or breakageThe 2.0 dCi timing chain can stretch or, in the worst cases, break earlier than expected: there are documented cases between around 60,000 and more than 200,000 km in several models that use it. As the engine is an interference design between piston and valves, a breakage usually brings serious internal damage.

1.2 TCe

In Juke I, Pulsar and Qashqai II

- High severityFrequency: OccasionalTimingTiming chain stretch and breakageThe 1.2 TCe chain has no scheduled replacement, but in engines that burn oil the low level makes the camshaft phaser vibrate and the chain stretches until it becomes noisy or breaks. The dealer network replaces the tensioner if compression is good; if not, the short block or the engine.

1.6 dCi

In Qashqai II and X-Trail III

- High severityFrequency: OccasionalTimingOil leak from the timing chain coverThe 1.6 dCi uses a timing chain, not a belt, but several Kadjar and Espace V owners describe oil leaks around the chain cover or casing, in some cases serious enough to require removing part of the engine.

1.3 TCe

In Qashqai II, Qashqai III and X-Trail III

- Medium severityFrequency: OccasionalTimingTiming phaser faultA fault in the camshaft phaser can turn on the injection warning light and sometimes cause a loss of power in the 1.3 TCe/DIG-T. Renault-Nissan corrected it at the factory in February 2021; the repair involves checking the solenoid valves and, if necessary, replacing oil control valves.

1.6 DIG-T

In Juke I, Pulsar, Qashqai II and X-Trail III

- Medium severityFrequency: OccasionalTimingTiming chain wear and noiseThe 1.6 DIG-T's timing chain (Qashqai, Juke, Pulsar) can become noisy with the years. It is the most repeated mechanical fault in the owner reviews consulted for this engine, although in a minority of cases and with no manufacturer recalls or studies describing it as a widespread failure.

2.0 MR20DE / 2.5 QR25DE

In Qashqai I and X-Trail II

- Critical severityFrequency: RareTimingTiming chain stretch on the 2.0 MR20DEThe MR20DE has a timing chain and a German buying guide records Qashqai I 2.0 cases in which the chain stretched and ended up damaging the engine. It is uncommon: other sources consider it durable and none of the 123 testimonies reviewed cites the timing.

2.2/2.5 dCi

In Almera II, Primera III and X-Trail I

- Critical severityFrequency: RareTimingTiming chain wearThe 2.2 dCi's timing chain is one of the engine's strong points: the reliability reports consulted record very few cases of wear, far below the other faults we document for this engine.

Common causes of P0366 on any make

From most to least likely, according to the sources.

1Camshaft sensor "B" generating a noisy or out-of-phase pulse.^[1]
2Loose or corroded connector terminals, or oil in the connector.^[1]
3Harness chafed, pinched or heat-damaged, or damaged shielding that lets interference in.^[1]
4Camshaft wheel damaged or dirty, or incorrect gap between sensor and wheel.^[1][3]

What to check first

The first diagnostic steps, from the most likely and cheapest to check to the most expensive.

1Read the codes and the freeze-frame data. Look for accompanying codes from the P0365 to P0369 family, sensor "A" (P0340 to P0344), the crankshaft (P0335, P0336) or variable valve timing.^[1][3]
2As it is often an intermittent fault, test with the engine warm, wiggling the harness and connector while watching the signal.^[1]
3Check the camshaft connector, harness, sensor and wheel: oil, terminals, damage and gap to the sensor.^[1][3]

Full guide to P0366: symptoms, diagnosis and whether you can drive

Frequently asked questions

Which Nissan engines have faults that can trigger P0366?

2.5 dCi YD25 (1 fault), 0.9 TCe (1 fault), 2.0 dCi (1 fault), 1.2 TCe (1 fault), 1.6 dCi (1 fault) and 1.3 TCe (1 fault). Each fault has its own page with the affected years and versions, the symptoms and the repair cost.

What does code P0366 mean on a Nissan?

Camshaft position sensor "B" circuit: performance problem or out-of-range values (bank 1). The signal from camshaft sensor "B" on bank 1 (normally the exhaust one) arrives, but does not behave as the ECU expects: it is noisy, arrives at the wrong point in the crankshaft's rotation or is not plausible when compared with it. It is a generic OBD-II code: it means the same on a Nissan as on any other make.^[1][2]

Can I keep driving with P0366?

Garage soon. AutoDTCs rates it as moderate severity: you can usually keep driving, but there may be stalling, hard starting or loss of power, so it should be diagnosed before you depend on the car.^[1]

Sources

Every fact on this page links to its source. If you find an error, let us know.

P0366 – Camshaft Position Sensor “B” Circuit Range/Performance Bank 1AutoDTCs · Technical documentation · consulted 29 October 2026
p0366 Generic DTC: Camshaft Position Sensor "B" Circuit Range/PerformanceDTCSearch · Technical documentation · consulted 29 October 2026
How to Test Crankshaft and Camshaft Position SensorsAutoDTCs · Technical documentation · consulted 29 October 2026