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20. EVAPORATIVE EMISSION CONTROL SYSTEM Downtown 300i ABS
PURGE CONTROL VALVE FLOW
INSPECTION
1. Connect a vacuum pump to the purge
control valve vacuum tube and apply
vacuum pressure of 45mm/Hg.
2. Connect a pressure pump to the tube that
goes to the charcoal canister and apply Pressure Pump
pressure. The flow must be over 9.4 liters
per minute and replace the purge control
valve with a new one if the specified flow
is not reached. Vacuum Pump
To prevent damage to the purge control
valve, do not use high air pressure
sources. Use a hand operated pressure
pump only.
INSTALLATION
1. Install the purge control valve in the
reverse order of removal.
2. Route and reconnect the purge control
valve tubes properly and securely.
Be careful not to bend, twist or kink the
tubes during installation.
20-5