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]Seat Belt Extender
If your seat belt is not long enough, even
when fully extended, a seat belt extender
may be available to you at no charge from
your Authorized Mazda Dealer.
This extender will be only for you and for
the particular vehicle and seat. Even if it
plugs into other seat belts, it may not hold
in ...
PCM Removal/Installation [Mzr 2.0, Mzr 2.5]
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the following items:.
Battery
PCM cover No.1
4. Disconnect the PCM connector..
5. Remove the battery tray and PCM component..
6. Remove in the order indicated in the table.
...
Vehicle Speed Sensor (VSS) Inspection [FS5 A EL]
On-Vehicle Inspection
1. Inspect the power supply circuit for the VSS.
a. Remove the insulator from the transaxle.
b. Disconnect the VSS connector.
c. Switch the ignition to ON (engine off).
d. Measure the voltage at VSS connector terminal A (harness-side).
If there is a ...