Parts for your 2008 Toyota Camry-Camshaft sensor

2008 Toyota Camry camshaft sensor: what it does and when to replace it

Based on technical sources, the 2008 Toyota Camry is fitted with a camshaft position sensor (CMP). The Toyota Technical Information System (TIS) Repair Manual for the XV40 Camry (2007–2011), Toyota’s Electronic Parts Catalogue (EPC), and standard OBD-II diagnostics (DTCs such as P0340/P0341 for Bank 1 and P0345/P0346 for Bank 2 on the 2GR-FE V6) all document the CMP’s presence, testing, and replacement. On the 2AZ-FE 2.4L four-cylinder, the sensor is mounted at the cylinder head near the timing chain end. On the 2GR-FE 3.5L V6, there are bank-specific sensors on the cylinder heads for cam timing feedback.

In this Camry, the camshaft sensor tells the engine computer exactly where the cam is in its rotation. That live timing signal lets the ECU fire the injectors accurately, control VVT-i cam timing, and keep starting crisp and idle stable. If the signal goes missing or messy, owners can see a check engine light, hard starting or no start, rough idle, flat spots on acceleration, and higher fuel use. The ECU will usually log a fault code before things get too dramatic.

It’s not a scheduled service item, but it’s smart to inspect the harness and connector during routine servicing—particularly for oil wicking into the plug, brittle loom near the rocker cover, or damage from previous work under the bonnet. A quick scan-tool check for cam/crank synchronisation and a visual once-over often prevents headaches down the track.

If replacement is needed, it’s a straightforward job for most workshops. Typical steps include: disconnect the battery, remove the engine cover, unplug the sensor, undo the retaining bolt, and ease the sensor out (there’s an O-ring). Lightly oil the new O-ring, install the new sensor, snug the bolt to the correct spec per service data, reconnect, clear the code and confirm the cam and crank signals line up on a test drive. Quality matters here—OE or reputable aftermarket sensors tend to give the best long-term results.

• Common symptoms: check engine light (P0340/P0341/P0345/P0346), long crank or no start, rough idle, poor fuel economy.
• Quick checks: wiring integrity, clean/dry connector, proper 5V reference, ground, and signal with a DVOM or oscilloscope.
• After replacement: clear codes, let the ECU relearn over a few drive cycles.

This is a modest-cost fix that keeps the Camry running sweet and efficient across Aussie and Kiwi conditions.

Where is the camshaft sensor on a 2008 Camry?

On the 2AZ-FE 2.4L four-cylinder, it’s on the cylinder head at the timing chain end, easy to reach from the top once the engine cover is off. On the 2GR-FE 3.5L V6, there are bank-specific sensors mounted at the ends of the cylinder heads, Bank 1 is the side with cylinder one. Access can vary slightly by market trim and intake layout.

What fault codes point to a bad camshaft sensor on this model?

Typical codes are P0340/P0341 (Camshaft Position Sensor “A” Bank 1) and, on the V6, P0345/P0346 (Bank 2). These may be accompanied by hard starting, stalling, or rough idle. Always check wiring and connectors first, as many “sensor” codes are actually caused by harness or plug issues.

Can the sensor be cleaned, or does it need replacing?

If the tip is just oily, a quick wipe won’t hurt. But if the sensor is failing electrically, cleaning won’t restore a stable signal. When diagnostics show an intermittent or no-signal fault and the wiring tests good, replacement is the reliable fix.