Parts for your 2017 Subaru Exiga-Crank angle sensor

2017 Subaru Exiga crank angle sensor: what it does and how to look after it

Technical sources confirm the 2017 Subaru Exiga is fitted with a crank angle sensor. Subaru’s factory service information (STIS) for the FB25-powered Exiga/Crossover 7, along with the Subaru FAST electronic parts catalogue for the 2015–2018 YAM series, list a crankshaft position (crank angle) sensor as standard equipment. The ECU also monitors it with DTCs such as P0335 in the Subaru diagnostic manuals.

On this Exiga, the crank angle sensor tracks the exact position and speed of the crankshaft and feeds that data to the ECU. The ECU then times fuel injection and spark, syncs with the cam sensors for variable valve timing, and keeps idle and emissions neat and tidy. If the signal drops out, expect cranking with no start, intermittent stalling, rough running, or a check engine lamp. It’s a small part with a big say in how smoothly the Exiga gets down the road.

It’s not a scheduled replacement item, but it is smart to include it in regular servicing checks. A technician will:

• Scan for fault codes and live RPM signal.
• Inspect the sensor connector and loom for corrosion, oil contamination, or chafing near the engine and bellhousing.
• Check for engine oil leaks that can seep onto the sensor and trigger wheel.

Replacement is straightforward for a trained tech: disconnect the battery, unplug the sensor, remove the retaining bolt, withdraw the sensor, lightly oil the O-ring on the new unit, refit and torque to spec per the Subaru service manual, then clear codes and road-test. No fancy relearn is usually needed on FB-series engines, but confirming with a Subaru scan tool is good practice.

Owners chasing reliability should stick with a genuine or OEM-equivalent sensor matched to the VIN, FB-series sensors differ from older EJ-series units. During major services, having the workshop quickly check the harness routing and cleanliness under the bonnet can prevent heat- and oil-related gremlins later on.

Common signs it’s time to act include:

1. Hard starting or no start after heat soak.
2. Random stalling at idle or when coming to a stop.
3. Misfire feel, poor fuel economy, and a glowing MIL with codes like P0335.

Look after the wiring, keep leaks at bay, and the Exiga’s crank angle sensor will usually clock up years and many kilometres without fuss.

FAQs

Where is the crank angle sensor on a 2017 Subaru Exiga?
On FB25-equipped Exiga/Crossover 7 models, it’s typically mounted on the engine block near the bellhousing area, retained by a single bolt and plugged into the main engine harness. Access is from the top side of the engine bay, a small spanner or socket does the trick.

Does the crank angle sensor need regular replacement?
No, it’s not a routine service item. It’s replaced on condition—usually when symptoms appear or a fault code is stored. That said, having the connector and wiring inspected during major services is a good preventative step.

Is it safe to drive with a failing crank angle sensor?
Not really. Intermittent signals can cause stalling or no-start situations, which is a pain and a safety risk. If the Exiga shows related symptoms or logs a CKP code, it’s best to get it checked promptly.