Q: How to remove and install the air cleaner housing and MAF sensor in a Nissan Quest?A: Disconnect the cable from the negative terminal of the battery. Then, disconnect the MAF sensor wiring. Proceed to disconnect the bypass air inlet hose, the crankcase ventilation tube and the No.2 intake air resonator from the air filter box outlet tube. Loosen the retaining clamp securing the air filter box outlet tube to the throttle body. Detach the spring clip from the air filter box upper housing. Separate the air filter box outlet tube from the throttle body, disconnect the EGA regulator solenoid vacuum hose, then lift the upper air filter box, MAF sensor and air filter box outlet tube from the engine compartment as an assembly. To remove the lower air filter box simply detach the mounting bolts and separate it from the No.1 intake air resonator. Installation is the reverse of removal.