Mazda 6 Service Manual: Exhaust system
EXHAUST SYSTEM INSPECTION
Start the engine and inspect each exhaust system component for exhaust gas leakage.
- If leakage is found, repair or replace as necessary.
EXHAUST SYSTEM REMOVAL/INSTALLATION
Warning
- When the engine and exhaust system are hot, they can badly burn. Turn off the engine and wait until they are cool before removing the exhaust system.
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
Operation Test
Carry out the Fuel Injector Operation Inspection. (See Fuel Injector
Operation Inspection.)
If not as specified, perform the further inspection for the fuel
injectors.
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Emission system
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Other materials:
Mazda 6 Service Manual: Overheating
If the high engine coolant temperature warning light turns on, the vehicle loses
power, or you hear a loud knocking or pinging noise, the engine is probably too
hot.
WARNING
Pull over to a safe location,
then switch the ignition off and make sure the fan is not running before attempting
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Mazda 6 Service Manual: Fuel Economy Monitor
The Control Status and Fuel Consumption are switched and displayed by operating
each icon in the display.
In addition, after completing a trip, the total energy efficiency to date is
displayed in the ending display when the ending display is turned on.
1. Select the icon on the home
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