83 urq stumble and other isues

Brady Moffatt bradym at sympatico.ca
Wed Apr 23 15:42:30 EDT 2003


Thanks, Huw.

Excellent! It was set to 45-55. It jumps around a bit in that range. I'll
bring it down to just under 40% when it stops &%$#$ raining!

Cheers,
Brady

----- Original Message -----
From: "Huw Powell" <audi at humanspeakers.com>
To: "Brady Moffatt" <bradym at sympatico.ca>

>
> > New parts, and tested parts:
> > wires,
> > plugs,
> > cap,
> > rotor,
> > tested intake air temp sensor,
> > tested WOT switch,
> > tested idle switch,
> > adjusted idle and freq valve duty cycle to spec.
>
> what did you adjust the FVDC to at warm idle?  You could try a lower
> percentage, to get a richer mix when in open loop (cold start, WOT).
>
> 50% is supposed to be "right," (from my n/a memories) but I believe most
> turbo folks set it just under 40% or so.
>
> > Symptoms:
> > Car stumbles under more than 1/2 throttle in 3-5 gears.
> > Car pulls hard and smooth with less throttle and in 1-2 gears.
> > No smoke or funny noises of any colour or sound.
> > Car is hard to start and keep running from cold. Usually requires 2-3
tries
> > then feathering throttle to let it warm up a bit before taking off.
> > Warm start is fine.
>
> --
> Huw Powell
>
> http://www.humanspeakers.com/audi
>
> http://www.humanthoughts.org/
>


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