19. EXHAUST EMISSION CONTROL
SYSTEM MOVIE SYSTEM
SECONDARY AIR CLEANER /
AIR INJECTION CUT-OFF
VALVE (A.I.C.V.)
INSPECTION · The secondary air cleaner must be
Inspect the air injection cut-off valve flow assembled and installed properly to
using a vacuum pump. If the flow is not avoid dust entering the air cleaner.
within the specified values, replace with a · When installing, be careful not to
new one. bend or twist the tubes and check for
The flow should be at least 30 liter/min proper installation.
when a vacuum of 250mm/Hg is applied. · The tube length is very important to
The flow should be at least 1.6 liter/min its performance, use the tube of
when a vacuum of 320mm/Hg is applied. same specification for replacement.
Check each connecting tube for cracks or
damage and replace if necessary.
19-3