RE: [DML] idle speed regulator

["John Hervey" <john@xxxxxxxxxxxxxxxx>]

Ed See below:

-----Original Message-----
From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx]On Behalf
Of Ed Kane
Sent: Thursday, August 11, 2005 3:48 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] idle speed regulator


I just got my car less than 2 weeks ago.  Ive done alot of reading out of
the dmc workshop manual.
( If you want to know how it works and or the theory of operation then read
the Technical Manual.)

My question is with the idle.  I know these cars idle up and down.  From
what i understand, the idle speed regulator has alot to do with this,
( The idle speed motor just opens and closes an orifice to allow air in on
the bottom side of the air flow meter so when you let off the gas the car
won't die.)


I also read that the electronic idle system is only in use when the micro
switch is fully opened or closed.
( The switch grounds the and or completes the circuit of the system will
operate)

  When it is fully opened or closed then the computer tells the idle speed
regulator to open or close for more or less air flow.
( It just opens and closes, it doesn't regulate by opening a little)

 what would happen if i was to pull the plug on the speed regulator when the
car was at the correct idle.  Would that stop the changing idle speed.
( You would have a to much air when it's not needed.)


  I know this could also be caused by vaccum leaks, but just out of
curiosity, if there where no vaccum leaks, would this help the problem.  Or
what would happen if u pulled the plug on just the mirco switch.  One other
question,  I know when u start your car up when it is cold it goes to a
higher rpm.  Like it has an electric choke.  Would pulling the plug on the
idle
 speed regulator stop this too.  I don't know about anybody else, but if my
car has been sitting for a week i dont want it firing up at 2,000 rpms when
the engine has had no oil flow.  Thanks
( Leave the idle speed motor along if it's working and adjust the mixture
screw to smooth out the idle. Make sure all three screws in the throttle
body are turned down and the engine is hot. What about the 02 sensor, how
many miles on the car and has it ever been changed.)

John Hervey
www.specialtauto.com


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