Disconnect the cable from the negative battery terminal. For models from 2005 and earlier, the sensor is located under the timing belt cover, next to the exhaust camshaft sprocket on the front cylinder bank. Remove the timing belt cover, disconnect the sensor electrical connector, and then remove the two mounting bolts to take out the sensor. Installation is the reverse of removal, ensuring the bolts are tightened securely. For models from 2006 and later, 3.8L engines have two CMP sensors located on the top left ends of the valve covers, while 2011 and later 3.5L engines have four CMP sensors located on the left ends of the valve covers, with one for each intake and exhaust camshaft. If removing a sensor from the rear cylinder bank, the upper intake manifold may need to be removed. Disconnect the electrical connector from the CMP sensor, remove the mounting bolt, and take out the sensor. If reinstalling the same sensor, check the condition of the O-ring and replace it if damaged. Installation follows the reverse order, tightening the CMP sensor bolt to the specified torque.