Replacing the CKP sensor might set a Diagnostic Trouble Code (OTC). If it does, and you have a generic scan tool that can clear codes, erase the code and check if it reappears. If it does, drive the vehicle to a dealer service department to perform a Misfire Monitor Neutral Profile Correction procedure with a factory scan tool. Begin by disconnecting the cable from the negative battery terminal. For four-cylinder models and 3.0L V6 models (2007 and earlier), loosen the right front wheel lug nuts, raise the front of the vehicle, and support it securely on jackstands. Remove the right front wheel and the inner fender splash shield, then remove the engine under-cover. For four-cylinder models, position the no. 1 cylinder at Top Dead Center (TDC), then disconnect the electrical connector from the CKP sensor. Unscrew the CKP sensor mounting bolts and remove the sensor. If installing a new CKP sensor, use the special alignment jig that comes with it to align the sensor according to the manufacturer's instructions, then tighten the bolts and remove the jig. If reinstalling the old CKP sensor, align it using the timing plate's teeth as a guide, then tighten the bolts. The remainder of the installation is the reverse of removal. For 3.0L V6 engines, disconnect the CKP sensor electrical connector, unscrew the mounting bolt, and remove the sensor, inspecting the O-ring for damage and lubricating it with oil before installation. For 3.5L engines, remove the front cylinder bank
Catalytic Converter if applicable, then remove the heat shield and the rubber grommet cover to access the CKP sensor. Disconnect the electrical connector, remove the mounting bolt, and inspect the O-ring before lubricating it and reinstalling the sensor, ensuring to tighten the mounting bolt to the specified torque.