Airflow Inspection
1. Remove the vacuum hose..
2. Blow air into the vacuum hose using your mouth from the vacuum pump side and verify that the air flows to the intake manifold side, then blow air from the intake manifold side and verify that the air does not flow to the vacuum pump side.

If there is any malfunction in the check valve, replace it with the vacuum hose as a single unit..
Air Bypass Valve Inspection [Mzr 2.3 Disi Turbo]
Compression Inspection [Mzr 2.0, Mzr 2.5]Glass Antenna Inspection
4SD
1. Disconnect the negative battery cable..
2. Disconnect the antenna amplifier connector B..
3. Disconnect the antenna feeder No.3 connector C. (with audio unit (with display)).
4. Inspect the glass antenna for damage visually.
5. Inspect for continuity between the glass antenna termin ...
Manifold Absolute Pressure (Map) Sensor/Intake Air Temperature (Iat) Sensor
No.2 Removal/Installation [Skyactiv G 2.0]
NOTE:
Because the IAT sensor No.2 is integrated in the MAP sensor, replacing the
IAT sensor No.2 includes replacement of the MAP sensor/IAT sensor No.2.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the MAP sensor/IAT sensor No.2 connecto ...
Air Bleeding
CAUTION:
If the strainer is removed, impurities may penetrate the power steering system
and damage it. To prevent this, always bleed air with the strainer installed.
Do not maintain the steering wheel fully turned for 5 s or more. The oil
temperature could rise and damage ...