Emission Control System; Exhaust Emission Control System (Pair System) - Suzuki VL800 Service Manual

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18-86 VL800/C/TK9 ('09-MODEL)

EMISSION CONTROL SYSTEM

The exhaust emission control system is composed of the PAIR system, HO2 sensor (For E-02, 19, 24, 33),

catalyst system and ISC system. The fresh air is drawn into the exhaust port through the PAIR control sole-

noid valve and PAIR reed valve. The PAIR control solenoid valve is operated by the ECM, which is con-

trolled according to the signals from TPS, ECTS, IATS, IAPS and CKPS. The ISC valve adjusts the bypass

air volume of the throttle body to control engine idling speed with various sensor signals by varying engine

running conditions and the idling control contributes to reduce exhaust emission level.

2 Air cleaner box

3 PAIR control solenoid valve

4 PAIR reed valve

5 Fuel injector

7 HO2 sensor (E-02, 19, 24, 33)

B EXHAUST GAS

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Intruder vl800