Parts for your 2002 Honda Odyssey-Camshaft sensor

2002 Honda Odyssey Camshaft Sensor: purpose, symptoms, and servicing tips

Yes, the 2002 Honda Odyssey (J35A4 3.5L V6) does use a camshaft position (CMP) sensor. This is documented in the Honda factory service manual for 1999–2004 Odyssey models (Engine/PGM-FI sections covering CMP diagnostics and DTCs P0341/P0344) and shown in OEM parts catalogues listing a camshaft position sensor for the J-series V6. It’s mounted on the rear cylinder head (Bank 1) and works in tandem with the crank sensor to keep the engine management on-song.

The CMP sensor’s job is to tell the Powertrain Control Module exactly where the cam is relative to the crank. That lets the Odyssey fire injectors sequentially, time the spark properly, validate VTEC operation, and monitor misfire using cam/crank correlation. If the signal goes missing or drifts, the Odyssey can be hard to start, may stumble at low speed, and will likely log a Check Engine Light with codes such as P0341 or P0344.

It isn’t a scheduled replacement item, but heat, oil intrusion, or a brittle harness can age it out. During major jobs under the bonnet—like timing belt service—it’s a smart move to check the CMP sensor connector for oil, cracked insulation, or green corrosion, and make sure the retaining bolt is tight and the loom is clipped away from hot bits.

Replacement is straightforward for a home mechanic with basic tools: disconnect the battery, unplug the sensor on the rear head, remove the small retaining bolt, ease the sensor out, and swap in a new one with a lightly oiled O-ring. Refit the bolt snugly to spec per the service manual, reconnect the plug, clear codes, and let the engine idle for a few minutes so the ECU can relearn. If faults persist, check the 5 V reference, ground, and signal wire integrity, and confirm cam/crank sync on a scan tool.

• Common symptoms: long crank, random stalling, rough idle, poor economy, and a CEL with P0341/P0344.
• Good practice: use quality OEM-equivalent sensors, keep oil leaks off the connector, and inspect the harness whenever you’re in there.
• If you’re unsure: a scope trace of the cam and crank signals or a shop with Honda-capable diagnostics can nail it quickly.

Popular questions about 2002 Honda Odyssey camshaft sensors

Where is the camshaft sensor on a 2002 Odyssey?
It’s on the rear (firewall side) cylinder head, typically near the end of the camshaft. Look for a small sensor with a two- or three-pin connector held by a single bolt. Access is from up top under the bonnet, removing the engine cover and some intake ducting helps.

Can you drive with a failing camshaft sensor?
It may still run, but starting can be hit-and-miss and it may stall or run rough. Prolonged driving risks poor fuel economy and potential catalyst damage from misfires. Best bet is to diagnose and replace the sensor or repair the wiring sooner rather than later.

How much does replacement usually cost?
In Australia or New Zealand, a quality aftermarket CMP sensor often sits around the mid two-figure to low three-figure mark, with 0.5–1.0 hour of labour at local rates. Prices vary by brand and workshop, so a quick quote from a trusted mechanic is worthwhile.