Detach the cable from the negative terminal of the battery and disconnect the IAT sensor wiring. For a Civic with a D16Y7 engine, remove the air duct followed by the air filter box, which involves removing the duct and resonator and loosening the clamp. For all other models, remove the air intake duct and resonator before taking out the air filter box, which is secured by bolts; on CR-V models, remove the bolts and pull the box from the grommet. Installation is the reverse of removal.