Scott is so very right.  Check and adjust my throttle switch regularly,
because regularly its adjustment needs tweaking. Its easy to do, and means
a lot. In my case, I  use the on/off light on my Shoebox monitor. Its a
light wired into the Ecu to tell you about the switch. A good meter hooked
up right will do the same thing.

John
On May 9, 2016 17:52, "Scott" <SCOTTDANIEL@turbovans.com> wrote:

> is the idle switch making contact at idle ??
> very very important ..
> and most that I look at are not working right.
>
> Scott
>
> On 05/09/2016 06:56 AM, David Beierl wrote:
>
>> At 08:04 PM 5/8/2016, Spencer Allen wrote:
>>
>>> Took my 85 auto trans to mechanic to try and cure the bouncy
>>> idle-raced up & down in neutral/park- and he stop the bounce but now
>>> I have a weak idle warm or cold. Idle is so weak & lumpy that engine
>>> dies when attempting to put in gear and often just dies outright. I
>>> can apply throttle to get rpm up and it will run smooth like that
>>> but let off to put in drive no good. He seems to think the aux air
>>> reg is bad but even with warm/hot engine it still does the stumble &
>>> die thing. Shouldn't the aux air reg be a non factor if the engine
>>> has warmed up? before taking it in I did the hose pinch at start up
>>> and the rpms dropped as it should. I can't do that now because idle
>>> is too weak. Will attempt to do the Bentley check of aux air reg but
>>> would like some input or opinions on the weak idle. Thanks for any help.
>>> Spencer
>>> 85 Westy 1.9 auto
>>>
>>
>> No, all the aux air regulator does is simulate opening the throttle
>> slightly when the engine is cold.  It's connected thermally to the
>> engine and also has an electric heater so it closes quicker after the
>> engine starts.
>>
>> Check that he didn't forget to reconnect the idle stabilizer module,
>> it advances the timing when rpm goes below the set point.
>>
>> Yrs,
>> d
>>
>>