EMISSION SYSTEM OUTLINE [G6]

id011695100100

• The emission system consists of a TWC for exhaust gas purification, PCV valve for blowby gas recirculation, a purge solenoid valve, a charcoal canister, a evaporative gas check valve (two-way), and rollover valves for evaporative emission control.

System

Main component

Purpose

Exhaust purification system

CIS (air/fuel ratio control)

PCM, O2S, etc.

• To reduce CO and HC in exhaust gas

• To improve purification ratio of catalytic converter

Catalyst system^*2

TWC^*2

To reduce CO, HC, and NO_X in exhaust gas^*2

Positive crankcase ventilation (PCV) system

PCV valve

To prevent blowby gas from escaping into atmosphere

Fuel evaporative system

Purge solenoid valve, charcoal canister, rollover valve, evaporative gas check valve (two-way), fuel-filler cap, check valve (two-way)^*1, evaporative chamber^*1

To prevent evaporative gas from escaping into atmosphere

System	Main component	Purpose
Exhaust purification system	CIS (air/fuel ratio control)	PCM, O2S, etc.	• To reduce CO and HC in exhaust gas • To improve purification ratio of catalytic converter
Catalyst system^*2	TWC^*2	To reduce CO, HC, and NO_X in exhaust gas^*2
Positive crankcase ventilation (PCV) system	PCV valve	To prevent blowby gas from escaping into atmosphere
Fuel evaporative system	Purge solenoid valve, charcoal canister, rollover valve, evaporative gas check valve (two-way), fuel-filler cap, check valve (two-way)^1, evaporative chamber^1	To prevent evaporative gas from escaping into atmosphere

*1 :Without box

*2 :General (L.H.D.) specs.