For 2006 and earlier models, start by disconnecting the cable from the negative battery terminal. Next, remove the air intake duct by loosening the hose clamp screw and pulling off the duct, then disconnect the electrical connector from the MAF sensor. After that, disconnect the electrical connector from the MAF sensor and remove the half of the air filter housing that includes the MAF sensor. Detach the MAF sensor from the air filter housing cover by removing the four retaining nuts, then take out the MAF sensor. Installation is the reverse of removal, ensuring the MAF sensor retaining nuts are tightened securely. Once the battery is reconnected, the Powertrain Control Module must relearn its idle and fuel trim strategy for optimal driveability and performance. For 2007 and later models, disconnect the sensor wiring harness, remove the two mounting screws, and pull the sensor out of the air duct, with installation being the reverse of removal.