Idle control valve solenoid

Discussion in 'General Electronics Chat' started by Tree1, Aug 10, 2011.

  1. Tree1

    Thread Starter Member

    Nov 30, 2010
    46
    0
    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??
     
  2. debe

    Well-Known Member

    Sep 21, 2010
    947
    184
    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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