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Re: high idle



after seeing the post a squillion times, i thought i'd better put you out of
your misery ;-)

battery voltage is an important part of the injection/ignition calculation.  if
battery voltage isn't right, a different ignition map is generally used, and
timing backed off.  check your battery...

dave
'95 rs2
'90 ur-q


>Date: Mon, 18 Aug 1997 18:03:19
>From: Tony Lum <tlum@flash.net>
>
>At 07:35 AM 8/19/97 PDT, you wrote:
>>
>>Gday fellow Audi fans
>>Since I replaced the idle micro switch in my '91 90 the idle has heen   
>>doing OK.
>>Except ...
>>As the engine warms up, around 10 to 15 minutes from initial start, the   
>>revs increase from 800 to 1000 RPM. The increase happens in stages not   
>>all at once. Would anyone know what might be causing that.
>>I read in recent posting low voltage can cause high revs, how is that?
>>What should be the correct voltage supplied to battery from alternator,   
>>and how much should it drop when for example lights are switched on etc.
>>My car is a manual, FWD.
>>Any help will be welcome.