Re: 5KT starting problems

["Robert Dalton" <rpdalton@onebox.com>]

Your problem sounds like a classic cold start valve
problem.  I added a beeper to my cold start injector
on my 1990 Audi 100.  The cold start should be
adding fuel (beeping) when 40 deg and colderr.

Mine 1990 Audi 100 also has a starting problem
(lots of cranking required).  I discovered someting
today.  My fuel pump appears to run intermittantly.
 It normally runs for about 3 seconds when the
key is swithced on before cranking.  Then when
cranked it cranks pretty good.

However, sometimes the pump doesn't run when the
ignition switch is turned on.  When this happens
it usually cranks for a long time before starting.
-- 
Robert Dalton
rpdalton@onebox.com - email
(703) 234-3969 x1020 - voicemail/fax



---- DGraber460@aol.com wrote:
> Thanks to Scott M's great site & advice, I pulled
> the codes, and found no 
> faults (patient is an 85 5K turbo non quat).
> The car was starting very hard 
> if at all when really cold (25>). The only way
> it would start when that cold 
> was to hold the throttle to the floor and crank
> it a _long_ time, after which 
> it gradually come to life. Tried to check the
> frequency valve, but couldn't 
> get the port to provide any reading. The weather
> is now warmer (30-40) and it 
> cold starts OK, but after reaching op temp and
> setting for about 15-20 
> minutes, it starts but will not run unless the
> throttle is held open and 
> blipped repeatedly. After about a minute of this,
> it clears up and runs good. 
> Would that indicate leaking injectors? Is there
> a clear way to test them?
> Still trying to sort this beast out to trusted
> reliability. Help!
> TIA 
> 
> Dennis
> 

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