Mazda X-5. Manual — part 24

EXHAUST SYSTEM

01–15–1

01–15

01–15

EXHAUST SYSTEM

EXHAUST SYSTEM OUTLINE [LF] . . . . 01–15–1

Features . . . . . . . . . . . . . . . . . . . . . . . . 01–15–1

EXHAUST SYSTEM

STRUCTURAL VIEW [LF] . . . . . . . . . . . 01–15–1

End of Toc

EXHAUST SYSTEM OUTLINE [LF]

E5U011500000N01

Features

• The exhaust system (including the exhaust manifold) has been laid out as straight as possible in order to

achieve smooth flow of exhaust gas and maintain high power output. Additionally, a large-bore exhaust pipe
and a high-capacity main silencer with an inlet pipe that passes through the center of the main silencer body
have been adopted to reduce exhaust resistance.

End Of Sie

EXHAUST SYSTEM STRUCTURAL VIEW [LF]

E5U011500000N02

End Of Sie

MAIN SILENCER

PRESILENCER

MIDDLE PIPE

EXHAUST MANIFOLD

TWC

WU-TWC

E5U115ZS5001

EMISSION SYSTEM

01–16–1

01–16

01–16

EMISSION SYSTEM

EMISSION SYSTEM OUTLINE [LF] . . . . 01–16–2

Feature. . . . . . . . . . . . . . . . . . . . . . . . . 01–16–2
Specification. . . . . . . . . . . . . . . . . . . . . 01–16–2

EMISSION SYSTEM

STRUCTURAL VIEW [LF]. . . . . . . . . . . 01–16–2

Engine Compartment Side. . . . . . . . . . 01–16–2
Exhaust System . . . . . . . . . . . . . . . . . . 01–16–3
Fuel Tank Side . . . . . . . . . . . . . . . . . . . 01–16–3

EXHAUST PURIFICATION SYSTEM

OUTLINE [LF] . . . . . . . . . . . . . . . . . . . . 01–16–3

Feature. . . . . . . . . . . . . . . . . . . . . . . . . 01–16–3

EGR SYSTEM OUTLINE [LF] . . . . . . . . . 01–16–4

Features . . . . . . . . . . . . . . . . . . . . . . . . 01–16–4

EGR SYSTEM STRUCTURE [LF]. . . . . . 01–16–4
EGR SYSTEM OPERATION [LF] . . . . . . 01–16–4
EGR VALVE FUNCTION [LF] . . . . . . . . . 01–16–4
EGR VALVE

CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–4

CATALYTIC CONVERTER SYSTEM

OUTLINE [LF] . . . . . . . . . . . . . . . . . . . . 01–16–5

Feature. . . . . . . . . . . . . . . . . . . . . . . . . 01–16–5

CATALYTIC CONVERTER SYSTEM

STRUCTURE [LF] . . . . . . . . . . . . . . . . . 01–16–5

CATALYTIC CONVERTER SYSTEM

OPERATION [LF] . . . . . . . . . . . . . . . . . 01–16–5

POSITIVE CRANKCASE VENTILATION

(PCV) SYSTEM OUTLINE [LF] . . . . . . . 01–16–6

Feature. . . . . . . . . . . . . . . . . . . . . . . . . 01–16–6

POSITIVE CRANKCASE VENTILATION

(PCV) SYSTEM STRUCTURE [LF]. . . . 01–16–6

POSITIVE CRANKCASE VENTILATION

(PCV) SYSTEM OPERATION [LF] . . . . 01–16–6

POSITIVE CRANKCASE VENTILATION

(PCV) VALVE FUNCTION [LF] . . . . . . . 01–16–6

POSITIVE CRANKCASE VENTILATION

(PCV) VALVE
CONSTRUCTION/OPERATION [LF] . . 01–16–6

EVAPORATIVE EMISSION (EVAP)

CONTROL SYSTEM OUTLINE [LF] . . . 01–16–7

Features . . . . . . . . . . . . . . . . . . . . . . . . 01–16–7

EVAPORATIVE EMISSION (EVAP)

CONTROL SYSTEM STRUCTURE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–7

EVAPORATIVE EMISSION (EVAP)

CONTROL SYSTEM OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–7

QUICK RELEASE CONNECTOR

(EMISSION SYSTEM) FUNCTION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–8

QUICK RELEASE CONNECTOR

(EMISSION SYSTEM)
CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–8

Type A . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–8
Type B . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–9
Type C . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–10
Type D . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–10

PURGE SOLENOID VALVE FUNCTION

[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–11

PURGE SOLENOID VALVE

CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–11

FUEL-FILLER CAP FUNCTION [LF] . . . . 01–16–12
FUEL-FILLER CAP

CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–12

ROLLOVER VALVE FUNCTION

[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–12

ROLLOVER VALVE

CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–12

FUEL SHUT-OFF VALVE FUNCTION

[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–13

FUEL SHUT-OFF VALVE

CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–13

CHARCOAL CANISTER FUNCTION

[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–13

CHARCOAL CANISTER

CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–13

EVAPORATIVE EMISSION (EVAP)

SYSTEM LEAK DETECTION PUMP
FUNCTION [LF] . . . . . . . . . . . . . . . . . . . 01–16–14

EVAPORATIVE EMISSION (EVAP)

SYSTEM LEAK DETECTION PUMP
CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–14

Structure . . . . . . . . . . . . . . . . . . . . . . . . 01–16–14
Operation . . . . . . . . . . . . . . . . . . . . . . . 01–16–14

AIR FILTER FUNCTION [LF] . . . . . . . . . . 01–16–15
AIR FILTER

CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–15

EVAPORATIVE CHAMBER FUNCTION

[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–16

EVAPORATIVE CHAMBER

CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–16–16

End of Toc

EMISSION SYSTEM

01–16–2

EMISSION SYSTEM OUTLINE [LF]

E5U011600000N01

Feature

Specification

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EMISSION SYSTEM STRUCTURAL VIEW [LF]

E5U011600000N02

Engine Compartment Side

Improved exhaust gas purification

• EGR system adopted

• Catalytic converter system adopted

Item

Specification

EGR type

Stepping motor

Catalyst form

WU-TWC (monolith), TWC (monolith)

Evaporative emission (EVAP) control system

Charcoal canister type

Positive crankcase ventilation (PCV) system

Closed type

VENTILATION HOSE

PURGE
SOLENOID VALVE

PCV VALVE

EGR VALVE

QUICK RELEASE CONNECTOR

QUICK RELEASE CONNECTOR

QUICK RELEASE CONNECTOR

EGR PIPE

E5U116ZS5020