Mazda CX-5 Service & Repair Manual: 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 the purge solenoid valve.
System Diagram
U.S.A. and CANADA
Except U.S.A. and CANADA
Structure
-
The evaporative emission control system consists of the following parts:
|
Part name |
Reference |
|
Purge solenoid valve |
(See PURGE SOLENOID VALVE [SKYACTIV-G 2.0].) |
|
Catch tank |
(See CATCH TANK [SKYACTIV-G 2.0].) |
|
Charcoal canister |
(See CHARCOAL CANISTER [SKYACTIV-G 2.0].) |
|
Pressure control valve |
(See PRESSURE CONTROL VALVE [SKYACTIV-G 2.0].) |
|
Fuel shut-off valve |
(See FUEL SHUT-OFF VALVE [SKYACTIV-G 2.0].) |
|
Rollover valve |
(See ROLLOVER VALVE [SKYACTIV-G 2.0].) |
|
Fuel-filler cap |
(See FUEL-FILLER CAP [SKYACTIV-G 2.0].) |
|
CV solenoid valve |
(See CANISTER VENT (CV) SOLENOID VALVE [SKYACTIV-G 2.0].) |
Except U.S.A. and CANADA
|
Part name |
Reference |
|
Purge solenoid valve |
(See PURGE SOLENOID VALVE [SKYACTIV-G 2.0].) |
|
Catch tank |
(See CATCH TANK [SKYACTIV-G 2.0].) |
|
Charcoal canister |
(See CHARCOAL CANISTER [SKYACTIV-G 2.0].) |
|
Check valve |
(See CHECK VALVE [SKYACTIV-G 2.0].) |
|
Rollover valve |
(See ROLLOVER VALVE [SKYACTIV-G 2.0].) |
|
Fuel-filler cap |
(See FUEL-FILLER CAP [SKYACTIV-G 2.0].) |
Emission System
Purpose, Outline
A single-nano catalyst has been adopted for the under-floor, three-way catalyst
to improve emission gas purification efficiency.
Structural View
Engine compartment si ...
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
T ...
Other materials:
Fresh Air Duct
Purpose, Function
Conducts fresh air from outside the engine compartment.
Increases air density by taking fresh air, which is cooler than the engine
compartment, to enhance the charging efficiency, ensuring the combustion stability.
Construction
The fresh-air duct is i ...
Rear Drive Shaft Inspection
1. Inspect each connecting part for looseness.
Tighten or replace parts if necessary.
2. Inspect the dust boot on the drive shaft for cracks, damage, leaking grease,
and looseness in the boot band.
3. Inspect the drive shaft for bends, cracks, and wear in the joints or splines. ...
Vacuum Pump Inspection
1. Pinch open the clamp using pliers and disconnect the vacuum hose from the
vacuum pump..
2. Install the vacuum gauge as shown in the figure, then check the vacuum.
3. Warn up the engine.
If the pressure is less than the specification, inspect for the following.
Malf ...
