Parts for your 2010 Honda Accord-Camshaft sensor

2010 Honda Accord camshaft sensor — purpose, servicing and replacement

Technical references confirm the 2010 Honda Accord does use a camshaft position sensor (CMP). The 2008–2012 Honda Accord Service Manual (PGM‑FI/CMP Sensor section), Honda’s Electronic Parts Catalogue for the 2010 model, and mainstream service information platforms (e.g., ALLDATA, Mitchell 1/ProDemand) all document the CMP sensor and related diagnostics (fault codes such as P0340/P0341). On the 2.4‑litre K24 engine there’s one CMP sensor, while the 3.5‑litre J35 V6 uses two (one per cylinder bank).

On this Accord, the camshaft sensor lets the engine control unit know exactly where the cam(s) sit relative to the crankshaft. That matters for sequential fuel injection, spark timing, variable valve timing (VTC/VTEC), smooth cold starts and accurate misfire detection. When the sensor goes out of whack, the car can be hard to start, run rough, feel down on power, or flip the check‑engine light with cam correlation codes. Because the sensor reads a clean magnetic signal from the cam, good engine oil and tidy wiring are its best mates.

It’s not a scheduled replacement item, it’s a solid‑state part that’s usually only swapped when it faults. Sensible servicing for a 2010 Accord includes keeping oil changes on time (the sensor lives in an oily neighbourhood), checking the connector under the bonnet for heat‑hardened wiring, and making sure there’s no oil weeping into the plug. If a scan shows cam sensor codes, confirm power, ground and signal at the connector before condemning the sensor.

Location-wise, the 2.4 K24’s CMP sits at the timing end of the cylinder head. On the 3.5 V6, there are two sensors mounted at the rear of the heads (banks 1 and 2). Replacement is typically a straightforward driveway job with basic sockets: disconnect the battery, unplug the sensor, remove the small retaining bolt, swap the sensor and its O‑ring, then torque the bolt snugly. Clear any fault codes, warm the engine, and perform an idle learn if the battery was off (Honda’s standard idle learn: bring to temp, let the fans cycle, then idle undisturbed).

• Common signs: long crank, rough idle, poor fuel economy, hesitation, and codes P0340/P0341/P0365.
• Tips: use an OE‑quality sensor, inspect the harness, and don’t over‑tighten the small mounting bolt.
• Typical labour: about 0.5–0.8 hr per sensor, the V6 has two.

Popular questions about the 2010 Honda Accord camshaft sensor

Does a 2010 Accord have one or two camshaft sensors?
The 2.4‑litre four‑cylinder has one camshaft position sensor. The 3.5‑litre V6 runs two sensors, one for each bank. If chasing a fault on the V6, make sure you identify the correct bank before ordering parts.

Is a relearn needed after replacing the camshaft sensor?
No special cam sensor relearn is normally required. Clear codes, then perform Honda’s idle learn if the battery was disconnected: warm the engine fully, let the radiator fan cycle, then allow the car to idle undisturbed for a few minutes.

Can a bad camshaft sensor cause a no‑start?
It can cause long cranking or a start‑and‑stall. Often the Accord will still start by relying on the crank sensor, but it may run poorly and log cam/crank correlation faults. Always verify power, ground and the signal circuit before replacing the sensor.