Parts for your 2022 Subaru Impreza-Crank angle sensor

2022 Subaru Impreza crank-angle sensor

It is relevant and fitted. On the 2022 Subaru Impreza (FB20 engine), the engine management uses a crankshaft position sensor—often called a crank-angle sensor in Japanese and workshop terminology. Subaru factory documentation identifies this component as the Crankshaft Position Sensor (CKP), used for precise crank angle and speed input to the ECU. Technical sources consulted include Subaru’s 2022MY Impreza service manual (Engine/Control Systems), Subaru Technical Information System (DTC P0335/P0336 diagnostics), the Subaru parts catalogue listing for the CKP, and Denso technical data on magnetic crank sensors.

The crank-angle sensor’s job is to tell the ECU exactly where the crankshaft is in its rotation and how fast it’s spinning. Paired with the cam sensors, it lets the ECU fire the injectors and coils at the right moment, keep idle smooth, and manage cold starts and fuel economy. On the FB-series engine in the 2022 Impreza, the sensor is mounted at the front of the engine where it reads a toothed reluctor on the crank. If its signal goes missing or gets noisy, the ECU can’t time spark and fuel properly—leading to hard starting, stalling, or a no-start.

There isn’t a scheduled replacement interval for the crank-angle sensor on this model, it’s a service-on-condition item. Good workshop practice during regular servicing is to inspect the sensor connector and engine harness routing for heat or chafe, check for oil contamination around the mounting area, and scan for stored or pending faults. Typical fault codes linked to a failing or disturbed sensor are P0335 (crank sensor circuit) and P0336 (range/performance).

When replacement is needed, it’s a straightforward job for a qualified technician: battery isolated, connector unclipped, a single retaining fastener removed, sensor withdrawn, and the new unit installed with the O-ring lightly lubricated. The ECU generally doesn’t require special programming, clearing codes and performing a basic idle relearn after battery reconnection is standard. It pays to use a quality OEM-equivalent sensor and ensure the mounting face is clean so the sensor sits squarely with correct air gap. After fitting, a short road test while monitoring live data confirms stable engine speed signal and happy starts, both hot and cold.

• Common symptoms of trouble: extended cranking, intermittent stalling, erratic tacho, rough idle, or sudden no-start when hot.
• Preventative tip: keep connectors dry and locked, and avoid tugging the harness during other engine bay work.

Popular questions about the 2022 Subaru Impreza crank-angle sensor

Does the 2022 Subaru Impreza have a crank-angle sensor?
Yes. Subaru refers to it as the Crankshaft Position Sensor (CKP), and it provides the ECU with crank angle and speed. It’s essential for spark and fuel timing, so the car won’t run properly without it.

What are the symptoms and fault codes of a failing crank-angle sensor on this model?
Owners may notice long cranking, random stalling, rough idle, an inoperative tacho, or a complete no-start. A scan often shows DTCs P0335 or P0336. Because these symptoms can overlap with cam sensor or wiring faults, professional diagnosis is recommended before parts are replaced.

How often should it be replaced, and what might it cost in AU/NZ?
It isn’t a routine service item and is only replaced when faulty. As a guide, quality replacement parts often sit around AUD $120–$250 or NZD $130–$300, with about 0.5–1.0 hour of labour depending on workshop rates. Prices vary with brand and region.