[17] ENGINE AND EMISSION CONTROL - - EMISSION CONTROL <MPI> - EVAPORATIVE EMISSION CONTROL SYSTEM - CHECK VALVE CHECKPRINT PAGE / INDEX / PRIOR / NEXT
CHECK VALVE CHECK
   
Connect a hand vacuum pump to the check valve, apply negative pressure and check the airtightness.
Connect nipple colour
 Normal condition
Black
 Negative pressure leaks
Brown
 Negative pressure is maintained

[17] ENGINE AND EMISSION CONTROL - - EMISSION CONTROL <MPI> - EVAPORATIVE EMISSION CONTROL SYSTEM - CHECK VALVE CHECKPRINT PAGE / INDEX / PRIOR / NEXT
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