EXHAUST SYSTEM INSPECTION
Start the engine and inspect each exhaust system component for exhaust gas leakage.
EXHAUST SYSTEM REMOVAL/INSTALLATION
Warning
1. Disconnect the negative battery cable.
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.


HO2S Removal Note
Remove the HO2S using the SST
before removing the exhaust manifold.

Exhaust Manifold Installation Note
Tighten the exhaust manifold installation nuts in the order shown.

Fuel injector inspection
Emission systemMazda 6 Service Manual: Fuel Requirements
Vehicles with catalytic converters or oxygen sensors must use ONLY UNLEADED FUEL,
which will reduce exhaust emissions and keep spark plug fouling to a minimum.
This vehicle will perform best with fuel listed in the table.
* U.S. federal law requires that octane ratings be posted on gasoline st ...
Mazda 6 Service Manual: Receiving and Replying to Messages (available only with E-mail/SMS compatible
phones)
SMS (Short Message Service) messages, and E-mail received by connected devices
can be downloaded, displayed, and played (read by the system).
Additionally, replies can also be made to calls and messages in the received
messages.
Downloading messages
Up to 20 new messages can be downloaded and ...