I am having trouble adjusting my idle per the TB's.COM instructions, my questions are:
What does grounding the ALDL connection do prior to removing IAC connector w/key on? does it make IAC go fully closed?
Why does one procedure say to adjust screw to 500rpm and the other say adjust to 750rpm?
Is there a way to verify if the IAC is working electrically?
What if I cannot adjust the idle speed down to even 750 rpm? Does this indicate the IAC is still too far open? Do I have a large vacuum leak downstream of the throttle plate? Is one more likely than the other or could there be other reasons?
Thanks for all the help!
paul
What does grounding the ALDL connection do prior to removing IAC connector w/key on? does it make IAC go fully closed?
Why does one procedure say to adjust screw to 500rpm and the other say adjust to 750rpm?
Is there a way to verify if the IAC is working electrically?
What if I cannot adjust the idle speed down to even 750 rpm? Does this indicate the IAC is still too far open? Do I have a large vacuum leak downstream of the throttle plate? Is one more likely than the other or could there be other reasons?
Thanks for all the help!
paul