Mazda CX-5 Service & Repair Manual: Exhaust Gas Purification System
Purpose, Outline
-
Purifies contaminants (HC, CO, NOx) in the exhaust gas by utilizing the chemical reactions of the three-way catalytic converter.
System Diagram
Structure
-
The exhaust gas purification system consists of the following parts:
|
Part name |
Reference |
|
WU-TWC |
(See CATALYTIC CONVERTER [SKYACTIV-G 2.0].) |
|
TWC |
Evaporative Emission (Evap) Control System
Purpose, Outline
Prevents release of evaporative gas into the atmosphere.
The intake manifold vacuum introduces evaporative gas to the intake manifold
via the charcoal canister and t ...
Positive Crankcase Ventilation (PCV) System
Purpose, Outline
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
The intake manifold vacuum introduces blow-by gas to the intake manifold
via the PCV valve and the ...
Other materials:
Sirius Satellite Radio Unit Removal/Installation
CAUTION:
The audio unit communicates with the SIRIUS satellite radio unit and records
the presence/non-presence of the SIRIUS satellite radio unit when the ignition
is switched to ACC or ON (engine off or on) after connecting the negative battery
cable.
If the commander ...
Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
The PCV valve is open/closed by the intake manifold vacuum.
Construction
The PCV valve is installed to the oil separator.
The PCV valve consists of a spring and valve.
...
Start Stop Unit Inspection
1. Remove the following parts:
a. Column cover.
2. Verify that the voltages of each of the terminals are as indicated in the
terminal voltage table (reference).
If the voltage is not as specified in the terminal voltage table (reference),
inspect the parts under Inspection item(s) a ...
