Another turbo conversion comes to life

[Ti Kan]

OK, if you're sure the wiring and the relay is ok, then it's possible
that someone had "hotwired" the plug at the ECU, or perhaps within
the ECU itself.  There is also a possibility, although unlikely, that
the ECU is not functioning correctly in this area (a shorted out switching
transistor or something?).

-Ti
2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
--
    ///  Ti Kan                Vorsprung durch Technik
   ///   AMB Laboratories, Sunnyvale, CA. USA
  ///    ti at amb.org
 //////  http://www.amb.org/ti/
///

Todd Phenneger writes:
>  I have tried 3 different relays.  The original KH unit and some
> MC relays.  (They seem to be the same relay)
>   I have also gone over the wiring numerous times.  THe only
> wire to the FPR is the ground that goes to the ECU.  Without it
> the pump will never run.  I have the hooked up correctly.
> Unless someone bypassed it inside the harness sometime.  IF you
> bridge "jumper" that ground wire directly to ground I spose this
> would cause that.  Maybe I should look at the plug at the ECU
> end and look for tampering.
>  Hmm,
>    Do you see any holes in my theory.
>
> --- Ti Kan <ti at amb.org> wrote:
> > Todd Phenneger wrote:
> > >I will support both of Huw's statement.  If you need I can go
> > >outside and check my Kh but the the wire that goes to circuit
> > BS
> > >will indeed make your MC/KH fuel pump relay work properly.  I
> > >just spliced mine in.  Works great.
> > >  My overboost FPR Cutoff has NEVER worked on 4ktq conversion
> > >though, and my Fuel Pump runs all the time when the ignition
> > is
> > >on.  I'm curious if you have the same problem after you
> > finish
> > >your conversion.  If you do I want to compare wiring notes.
> >
> > If your FP relay runs all the time as soon as the ignition key
> > is
> > turned on, and the overboost cutout doesn't work, then I'd say
> > either the FP relay is not wired up correctly, or you're using
> > the
> > wrong relay.