30
＊what is ISC ?
(I
DLE SPEED CONTROL)
＊control method of ISC
when engine is at idle, ECU refer the sensors and decide how
much air is required, then tell the ISC to act forward or
backward.
＊sample
when cold engine, ECU tell ISC enrich the by-pass air to
increase the engine speed. After warm-up, ECU tell ISC
reduce the by-pass air to decrease the engine speed.
ISC(Idle Speed Control)
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