Parts for your 2005 Honda Elysion-Camshaft sensor

2005 Honda Elysion camshaft sensor — what it does and how to look after it

For the 2005 Honda Elysion, a camshaft position sensor is absolutely fitted and relevant. Honda’s own technical literature confirms it: the Elysion’s K24A 2.4 i‑VTEC and J30A V6 engines both rely on a dedicated Camshaft Position (CMP) sensor. This is documented in the Honda Elysion Electrical Troubleshooting Manual (2004–2006, Engine Controls), the Honda Electronic Parts Catalogue for RR1/RR2/RR3 models listing a CMP sensor, and is consistent with the K‑series and J‑series engine service manuals used across contemporary Accord and Odyssey models.

On this Elysion, the CMP sensor tells the engine control module exactly where the camshaft sits in its rotation. That lets the ECU fire the injectors in proper sequence, set precise ignition timing, and manage i‑VTEC/VTC cam phasing for smooth torque and clean emissions. It also helps with quick starts and accurate misfire detection by syncing with the crank sensor.

• Typical symptoms of a dodgy CMP sensor: hard starting or stalling, rough idle, flat spots, poor fuel economy, and a Check Engine light with codes like P0340–P0344.

It’s not a routine “replace-at-X‑kilometres” item, but it’s smart to check it during servicing. A quick look for brittle wiring near the cylinder head, oil wicking into the connector, or heat-hardened loom tape can prevent headaches. Clean engine oil matters too—sludgy oil can affect cam phasing behaviour, which sometimes gets blamed on the sensor.

When replacement is needed, use an OEM or high-quality sensor and fit a fresh O‑ring. On K24A models, the CMP sensor sits at the end of the cylinder head (exhaust side). On J30A V6 models, there’s a sensor on each bank near the timing cover area. Follow the service manual for the exact procedure and torque specs.

1. Disconnect the battery and remove any covers for access.
2. Unplug the connector, remove the retaining bolt, and withdraw the sensor.
3. Lightly oil the new O‑ring, install the sensor, and tighten to spec.
4. Reconnect, clear fault codes, and perform an idle relearn if required.

Good practice: keep oil changes on schedule, clip the harness back into its retainers, and keep water out of the cowl area after washing. If the Elysion throws cam or VTC correlation codes, check oil condition, cam timing, and wiring before condemning the sensor.

Popular questions

Where is the camshaft sensor on a 2005 Honda Elysion?
On K24A 2.4 models, it’s mounted on the end of the cylinder head on the exhaust side. On the J30A V6, there are two—one for each bank—positioned near the front of the engine by the timing cover area. Access varies slightly by trim and intake ducting.

What fault codes point to a bad camshaft sensor on an Elysion?
Common CMP-related codes are P0340, P0341, P0342, P0343, and P0344. Cam/crank correlation or cam timing codes (like P0011/P0012 on VTC systems) can also appear, those don’t always mean the sensor is faulty—oil quality, timing, or wiring can be the real culprit.

Does the camshaft sensor need regular replacement?
No set interval. It’s replaced on condition—when symptoms show or codes are confirmed. During routine servicing, a quick inspection of the connector, harness, and any oil leaks around the sensor is all that’s usually needed.