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Idle control valve solenoid

T

Thread Starter

Tree1

Joined Nov 30, 2010
46
Typically Idle control valves are controlled by a transistor in the ECM. If you were to monitor the voltage across the solenoid, wouldn't you see some kind of voltage spike instead of a perfect pulse??
 
debe

debe

Joined Sep 21, 2010
1,390
They are either controled by a steper motor or solenoid with PWM square waves. Usualy measured using duty cycle on a multimeter.
 
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