[urq] Starting Problem
ingo.rautenberg at gmail.com
Mon Dec 1 07:13:49 PST 2008
I'm with Pat. These are must do tests.
On Nov 30, 2008, at 4:08 PM, Patrick Carlier wrote:
> You can eliminate the fuel system loosing pressure in a easy way . .
> With the car in the right condition .
> Engine cold , not used for a couple of day's etc .
> Power the fuel pump manually by shortening the relais or use an
> auxiliary wire from the battery to the pump .
> Allow the fuel pump to run 10..15 seconds .
> That ought to assure pressure in the system .
> Then start the engine . If there's a noticeable improvement ,
> you have a leaking check valve or injectors leaking fuel or a bad
> accumulator .
> If there's no improvement , look elsewhere .
> Termotimeswitch is a good first suspect , auxiliary fuel injector
> is a good
> second .
> I've also had the opposite .
> Cols start injector injecting far to much , thus flooding the
> engine when
> cold .
> To check or eliminate this , simply disable the injector by
> unplugging the
> electrical connector
> Then start the engine . Cold , not run for a day or two .
> If there's a good improvement , replace the injector .
> If there's no change check the termotimeswitch and the wiring to it .
> If thing's got worse , your cold start system is functioning the
> way it
> ----- Original Message -----
> From: "LL - NY" <larrycleung at gmail.com>
> To: "Max Hoepli" <mhoepli at vif.com>
> Cc: <urq at audifans.com>; <audi_owners_usa at yahoogroups.com>;
> <quattro at audifans.com>; <w-t_audifans at yahoogroups.com>
> Sent: Sunday, November 30, 2008 9:45 PM
> Subject: Re: [urq] Starting Problem
>> One thing to potentially check out is leaking fuel injectors. Fuel
>> of the injectors, system looses start up pressure, and long starts
>> Gets worse the longer the car sits, up to the pont that the system
>> drops to zero. Not only are the hard starts a problem, but the
>> fuel is
>> leaing into (contaminating) the crankcase oil. A real telltale is
>> if the
>> smells like gas when you walk up to it (if stored inside). As I
>> injectors should be replaced every 60(!?!?!? some other lister's help
>> K miles or so.
>> LL - NY
>> On 11/30/08, Max Hoepli <mhoepli at vif.com> wrote:
>>> Hi all,
>>> Starting engine with 1986 Type Turbo Quattro, sometimes when left
>>> time in cold weather the car has to be cranked for a long time, 4
>>> each 10 seconds, then car puffs and puffs and runs. Mechanic told
>>> me it
>>> something to do with air intake, and sensors. Ignition is not
>>> according to him. He once used a T-shaped Allen screw to remedy
>>> temperature is 5C+ there is no problem.
>>> Any comments?
>>> quattro mailing list
>>> quattro at audifans.com
>>> Watch this space for ads :)
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