brake gas throttle cutout thing 88 5000 T Q

Bernard Littau bernardl at
Mon Dec 9 09:02:46 EST 2002

Hi Ken,

Pin 6 is the wire used by automatic transmission cars.

As far as I know, the ECU's are identical between manual and auto cars (and
CA cars).  The wiring loom to the connector on the ECU is where mine has the
CA wire cut, for instance.

Good luck figuring it out!

Bernard Littau
Woodinville, WA
'88 5ktq

> My car is an '88 5kcstq, so yes, standard shift quattro.
> However, the ecu came from Nate Stuart via Ebay, and it is a
> TAP-modified unit, so it may have come from an automatic.  It
> would certainly make sense if it is an auto ecu.
> Is there a jumper wire on the ecu that I can check to see if it
> is cut or not?
> I've heard of the CA car (vs. 49-state) jumper, but wasn't aware
> of the automatic jumper.  Or maybe I was confusing that for
> something I made up in my head!
> Can I tell by the ecu model number or the like?
> It is a very OEM-like "wall" it hits when this happens.  Like the
> 1.5+ bar cutoff, or the rev-limiter.
> My car is also modified with a TAP WG spring and pressure
> regulator mod.  I plan to put the stock spring in the WG and
> crank up the regulator to bring it back up to the current max
> boost levels, which is about 14/15psi.  I have an APC queued for
> installation as well.  It's a big queue tho'.
> Thanks,
> Ken
> Suffolk GameServer LAN at wrote:
> >
> > Someone with the answer please clue us both in:
> > I think:  That what you describe is a symptom of an automatic
> transmission
> > safety related feature.
> > But I think your car is not an automatic.  Is it original and
> not modified?
> > Somebody know the answer?
> > -Scott in BOSTON
> >
> >
> > Subject: '88 5kcstq throttle/brake cutout thing
> >
> > When I apply the brake and throttle at the same time on my '88
> 5kcstq, the
> > engine cuts out
> > as if there is some safeguard there, perhaps a response to the
> unintended
> > acceleration
> > thing.
> >
> > Is that a "feature" of my car, or is something wrong with it?
> >
> > Thanks,
> >
> > Ken

More information about the quattro mailing list