Honda Acura NSX 1991 Service Manual page 244

Idle Control System
System Description kont'd)
1 . After the engine starts, the EACV opens for a certain time. The amount of air is increased to raise the idle speed about 150
- 3 0 0 r p m .
2. When the coolant temperature is low, the EACV is opened to obtain the proper fast idle speed. The amount of bypassed air
is thus controlled in relation to the coolant temperature.
ENGINE SPEED
, , , , ,
- 2 0 2 0 4 0
0 60 80