EACV

lsvtec

GNU/Linux Evangelist
Are you getting a code for it? I think what you are describing is the IAC or Intake Air Control. It is kinda like a choke. It meters air that the motor gets at idle based on engine temp.
 

lsvtec

GNU/Linux Evangelist
it should be one the back of your intake manifold, but that depends on what motor you are talking about.
 
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