Parts for your 2010 Subaru Outback-Camshaft sensor

2010 Subaru Outback Camshaft Sensor — Purpose and Service Advice

Technical references confirm the 2010 Subaru Outback is fitted with camshaft position sensor(s). Subaru’s 2010MY Legacy/Outback (BR/BM) factory service manual within the Subaru Technical Information System details DTCs P0340/P0341 for the camshaft position sensor circuit and outlines test procedures. The Subaru genuine parts catalogue for BR/BM lists a camshaft position (phase) sensor for the 2.5-litre four-cylinder and sensors for each bank on the 3.6-litre six. Independent service information platforms (e.g., Alldata/Mitchell) mirror these listings and diagnostics for the 2010 Outback. That makes the camshaft sensor directly relevant and used on this model.

On the 2010 Outback, the camshaft sensor tells the engine control module exactly where the cam is in its rotation. That lets the ECU fire the injectors in sequence, time the spark properly, and manage the variable valve timing gear. The 2.5i four usually runs a single cam sensor mounted to the cylinder head, while the 3.6R six uses one per bank. If the sensor signal goes missing or erratic, the Outback may crank longer, stumble, feel doughy under load, or ping the check engine light with a P0340 or P0341.

It’s not a routine replacement item in the service schedule, but it does benefit from a bit of attention during regular servicing. A quick visual once-over for oil wicking into the connector, brittle wiring near the plug, or a loose retaining bolt goes a long way. If the engine bay’s seen a lot of dust or off-road use, a careful clean of the plug and a check that the loom is clipped back where it should be helps avoid intermittent faults.

Replacement is pretty straightforward on most 2010 Outbacks:

• Disconnect the battery negative.
• Locate the sensor on the cylinder head (left bank on most 2.5i, one per bank on 3.6R).
• Unplug the connector, remove the single retaining bolt, and ease the sensor out.
• Lightly oil the new O-ring, install the new sensor, and tighten the bolt to the factory spec from the service manual.
• Clear fault codes and road test, some vehicles may perform a brief relearn.

Good quality OEM or reputable aftermarket sensors are the go. If a fault returns, don’t forget to check the harness back to the ECU, as heat and age can make the wiring a bit crusty. Keeping the sensor clean, plugged in firmly, and torqued correctly means the Outback’s timing, fuel economy, and smooth running stay on song for plenty of kilometres.

Popular questions about the 2010 Subaru Outback camshaft sensor

Where is the camshaft sensor on a 2010 Outback?
On most 2.5i models it’s mounted on the cylinder head (typically the left bank), held by a single bolt with a two- or three-pin connector. On 3.6R models there’s one sensor per bank near the front of each cylinder head. It’s accessible with basic hand tools.

What are common symptoms or fault codes?
Expect hard starting, rough idle, hesitation, poorer fuel use, and a check engine light. Common codes include P0340 (Camshaft Position Sensor Circuit) and P0341 (Range/Performance). Always rule out wiring or connector issues before condemning the sensor.

Does it need regular replacement?
No, it’s replaced on condition. Inspect at service time for oil intrusion, damage, or loose fittings. When it fails, replacement is quick and relatively affordable, budget a short workshop visit to fit and clear codes.