[BiturboS4] left-foot braking & fuel (???) cutoff

Amer Saleh helas98 at yahoo.com
Mon Aug 19 13:20:08 EDT 2002

Kaido ----- I beg to differ......it has a lot to do
with ECU and drive by wire.....

However....you can sorta left foot brake but you must
be off the throttle when you first apply the brake,
and then apply the throttle with the brake already
applied.  If you are on the throttle and then give it
some brake, the engine will cut out which you already

Very similiar to rev matching or heel/toe which I do
on a regular basis track and daily driving.

Try adding throttle after you apply braking (left foot
braking)and it should work.


--- Kaido Raiend <kaido at eyp.ee> wrote:
> Hi!
> I subscribed to this mailinglist so I'll try to keep
> eye on discussion...
> TO: Steven - thank's for idea - I'll test it ...
> but it's not solution to my
> problem because THEN I'd need to learn "S4-specific"
> driving-tehnique which
> might be quite dangerous if I'm not used to it AND
> i'm driving different cars
> from different makers... in fact with an another car
> (I'd better not mention the
> make of a car  in this group ;) if I drive on
> gravel, it's very useful  to use
> left-foot baking in some conditions...
> Ok - I'll try your suggestion because I'm curious...
>  And if no one (even Darin
> ;) can give me advice I'll try to disconnect wire
> prom brake-pedal to ECU and
> see if it helps and hope it will not destroy
> anything esle ;)))
> TO: Amer:
> This fuel-cutoff situation is not normal...  In fact
> - when I first tried to use
> left-foot braking I got to quite dangerous situation
> because i wanted to brake
> only with very-very small "amount" of brakes
> applied... because I'm never heard
> before that this could lead to loss of power from
> engine I couldn't be prepared
> for this... so I drove towards slight corner and
> applied brakes which lead to
> powerloss from engine, which means that engine-power
> didn't equalize
> brakeing-power anymore which means
> A) I braked too much
> B) I lost turbo pressure
> C)  Even more - it takes 2-3 seconds to "restore"
> engine and about 1-1,5 seconds
> more before turbo "pressures-up"
> so it was NOT pleasant experience ...
> Just to conclude - left-foot braking IS normal and
> I'll find a way to make it
> work on S4 also...
> btw - my previous S4 (urS4) behaved very well and
> normally while I used
> left-foot braking...
> best regards,
> kaido
> Steven Lin wrote:
> > BTW, I've also heard that there's NO problem
> stepping on the gas with
> > the brake already applied.
> >
> > Steven
> >
> > Amer Saleh writes:
> >
> > > Yep that is normal....Braking with the foot on
> the gas
> > > will not work.
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