Another turbo conversion comes to life

[Huw Powell]

> Well I finally drove my 4kq turbo swap today for the first time.  I have
> a few remaining questions that I would love some help on.  The subject
> is an 85 4kq with an 85 KH motor.
>
> 1.  The fuel pump relay is not playing well with others.  I can only run
> the car if I jumper the relay which obviously is not a long term
> solution.  Bently tells me to connection one of the pins from the KH ECU
> to connection S on fuse box plug B.  This has connection to the fuel
> pump relay.  Well I don't have a KH fuel pump and the 4k does not have
> this connection (although BS still has a wire in it).

as I recall, on the turbo motors as a safety feature, the ECU can
control the FPR by providing its ground.  That is the wire in question.
  On your car B/S may be an empty connection, but it is connected inside
the fusebox to the FPR.  (see my fusebox diagram at:
http://www.humanspeakers.com/cgi-bin/audi_img.pl?image=fusebox.gif )

try to run a wire from it to that ECU connection, and use the KH FPR.

I hope that actually helps you, since I have little "hands on" with this.

> 2.  I am not sure how to hook up the fuel thingy mounted on the side of
> the block.  I think it is the warmup pressure regulator or something
> like that.  The 4k did not have one and I can seem to find it in the
> Bentley (I know it must be there).  Should I just give it terminal 15
> power and call it a day?

it is just a heater circuit, so, yes track 15 power (on with ignition)
is what you want to use.

--
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/