The first step to install the 2AZ-FE engine control system Camshaft Position Sensor involves checking the O-ring for damages because cracks or jams could affect installation. After lubricating the O-ring with engine oil begin sensor installation by using the bolt which should reach a torque value of 9.0 Nm (90 kgf-cm, 80 in-lbf). Next, connect the sensor connector. Finally, connect the negative cable to the battery terminal before putting the air filter cap in place. Check for oil leaks before continuing. Follow engine cover installation by performing an initialization step because the system needs this process after connecting and disconnecting battery cables from the negative (-) terminal.