Idle problem

[flaatr@yahoo.com (EUROROC II)]

That would be your you're fuel injection's brain (so to speak)...
Bosch Jetronic. Electronic Control Unit for Oxygen Sensor.

Me getting up on my soap box...

The newer Bentley Manual sucks, that is the 1985 to 1993 book, as compared 
to the 1980 to 1984. Although the newer version is essential if you own a 
16V I find, in general, that the older book covered more things in greater 
detail than the newer. Example

Engine and Clutch
1980 - 1984     89 pages for 8V engine only
1985 - 1994     38 pages for 8V and 16V

Manual Transmission
1980 - 1984     89 pages for 4 and 5 speed
1985 - 1994     44  pages for 5 speed only

Fuel and Exhaust (newer manual separates these into two section)
1980 - 1984     81 pages for CIS
1985 - 1994     89 pages (73 for Fuel and 16 for Exhaust) for CIS, CIS-E, 
Digifant I and Digifant II

Me getting off soap box.

I know this isn't comparing apples to apples but I find having both manuals 
very useful. The box I think you are talking about is discussed on page 74 
of the older book although the box in the picture is different than the one 
I remember in my 8V.

-Raffi



At 06:51 PM 6/2/2002 -0700, you wrote:
>cwass99@rogers.com wrote:
> >
> > Hi,
> >      I was running through the Bentley tests as part of the ongoing 
> effort to
> > deal with the Little Beastie's rather erratic idle, and I made a 
> discovery that
> > I don't understand.  I disconnected and plugged things, as per Bentley 
> to set
> > the idle, and it idled really nice.  Best it's been in a long time.  I 
> noticed
> > when I hooked everything back up, the idle went to shit again.
> >      Further tests revealed that if I pinch off the hose going from the 
> intake
> > manifold to the valve cover, the idle smoothes out.  When I set the 
> idle, I put
> > a block in the end, so I doubt that length of hose is leaking.  I even 
> added
> > clamps where there were none before to make sure the joints weren't 
> leaking.
> > No good, still idles badly.
> >      I guess I should mention it's an 87 8v.  Also, found a part Bentley
> > doesn't mention existing on my car.  It's a big black Jetronic part, 
> 321 906
> > 263 B (for those who have Etka), looks a lot like a knock box.  Except, 
> I don't
> > have a knock sensor and there's no vacuum line into the box that I 
> expected.
> > Any idea what this is?  I hate having things in there I can't identify ;)
> >
> > --
> > Cheers,
> > Colin
>
>
>
>Without checking the part outside on the car it sounds like you may have
>a Digital Idle Stabilizer. Is it inline with the electronic ignition
>module? Bentley says to remove it (just bypass really) from the circuit
>by hooking the male and female connectors together during idle
>adjustments.
>
>This box is small, about two inches on two sides and perhaps an inch
>deep.  Sounds like that's not what you describe but check to be sure
>it's not conflicting.
>
>Is the Jetronic box in the engine bay, the rain tray or inside the cabin
>under the dash?
>
>TBerk
>
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