Camshaft Position Sensor Replacement
Step-by-step guide to diagnosing and replacing a faulty camshaft position sensor to fix rough idle, misfires, or a check engine light.
Tools Needed
Find Materials Near You
Tap a store to find the nearest location on Google Maps.
Instructions
Confirm the Code
Use an OBD-II scanner to read fault codes. Camshaft sensor codes are typically P0340–P0349.
Locate the Sensor
Refer to your vehicle's service manual. The camshaft position sensor is usually near the top of the engine, close to the timing cover or valve cover.
Disconnect the Battery
Disconnect the negative battery terminal before starting work to avoid electrical shorts.
Unplug the Connector
Press the release tab and unplug the electrical connector from the sensor.
Remove the Sensor
Unscrew the retaining bolt (typically 8mm or 10mm) and pull the sensor straight out.
Install New Sensor
Insert the new sensor, ensuring the O-ring is in place. Tighten the bolt snugly. Do not overtighten.
Reconnect & Clear Codes
Plug in the connector, reconnect the battery, and clear the fault codes with the OBD-II scanner. Test drive to verify the fix.
