Q: What is the Function and Installation Process of the Camshaft Position Sensor on 2002 through 2006 Toyota Avalon?
A: The CMP sensor determines the position of the cylinder for sequential fuel injection signals to each cylinder and is mounted on the cylinder head near the camshaft sprocket, secured with one bolt. A problem in the sensor circuit will set a diagnostic trouble code. Ensure the ignition key is in the OFF position before removing the air filter housing. Disconnect the harness connector, remove the mounting bolt, and take out the CMP sensor from the cylinder head. Installation is the reverse of removal, using a new O-ring lightly coated with engine oil.