Accord L4-1955cc 2.0L SOHC 2-bbl (1986)
Idle Speed/Throttle Actuator - Electronic: Description and Operation
When the ECU senses a reduction in idle speed caused by increased engine load, the idle control solenoid valve opens to allow additional air to bypass
the throttle plate and enter the intake manifold. Correct valve operation depends upon changes in the voltage at the FR terminal of the alternator for
quick response. This valve also lowers fast idle speed during engine warm-up. To prevent erratic engine operation after engine first fires, the valve is
opened during cranking and immediately after starting to provide additional air into the intake manifold.
