Purpose, Function
Conducts fresh air from outside the engine compartment.
Increases air density by taking fresh air, which is cooler than the engine compartment, to enhance the charging efficiency, ensuring the combustion stability.
Construction
The fresh-air duct is installed to the air cleaner.

Engine
Hydraulic Variable Valve Timing Actuator InspectionIntake Air Temperature (Iat) Sensor Inspection
IAT Sensor No.1
Resistance inspection
NOTE:
Because the IAT sensor No.1 is integrated in the MAF sensor, replacing the
IAT sensor No.1 includes replacement of the MAF sensor/IAT sensor No.1.
1. Disconnect the negative battery cable..
2. Disconnect the MAF sensor/IAT sensor No.1 ...
Antenna Feeder No.2 Removal/Installation
Removal
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Sunroof seaming welt (with sunroof system).
b. A-pillar trim.
c. Front map light.
d. Sunvisor.
e. Front scuff plate.
f. Rear scuff plate.
g. B-pillar lower trim.
h. Adjust anchor cover.
i. Upper ...
Oil Pressure Switch Inspection
1. Switch the ignition ON (engine off) and verify that the oil pressure warning
light is illuminated.
2. Start the engine and verify that the oil pressure warning light turns off.
If the oil pressure warning light is not illuminated or remains illuminated,
inspect the wiring harness ...