Re: Throttle Switch Location

[alex.fadeev@xxxxxxxxxxx]

"Ron Jordan" <ron@domain.elided> wrote:
> So based on what you say, if I disconnect the ICV, the car should start
> and idle at 3000 RPM?

No, not that high.
About 1200-1500 with an otherwise perfectly working ICV that would spring
full open when unplugged.
DME (aka Motronic aka the Brian) measures the amount of air supplied to the
engine and sends the matching amount of fuel to keep it running. ICV is
used to supply some air to the engine when the throttle is closed to keep
it running. When unplugged and fully open it will pipe so much air that
when matched with fuel the idle go up to IIRC 1500 RPMs. However, if the
ICV is stuck closed (which seems to be your problem), this test will not
work.

> Since i am getting power the middle prong and the ICV is not clicking,
> and the throttle switch seem to work, I am wondering what else would
> be the cause of this.

I don't remember the exact Bentley test, but only two of the three ICV
connections are live.

> Looking at all the possibilites.  Like i said, I dont want to buy a new
> ICV if I dont have to

I ended up buying another E30 for my better half and started swapping parts
between the two identical cars to get to the bottom of my ICV.
Borrowing parts from a friend would be cheaper ;-)

alex f

  ----- Original Message -----
  From: Carl Runion
  To: Ron Jordan
  Sent: Thursday, June 27, 2002 3:34 PM
  Subject: RE: Throttle Switch Location


  Ron,

  I recently replaced my ICV because I thought it was faulty.  As I
remember
  the idle is supposed to go up to 2000-3000 rpm when the engine is running
  and the ICV is disconnected and there is supposed to be a slight buzzing
  sound with the ignition on and with the car not running  Mine had the
  buzzing but no increase in RPM's  so I replaced it and the new one does
the
  same thing.  I could have a problem in the electronics with the signal
that
  goes to the ICV.

  I'm guessing it's not your ICV but I could be wrong.  I cleaned mine out
a
  couple times with carb cleaner and it seemed to improve a problem I had
with
  acceleration.

  Good Luck

  Carl Runion

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