Wiring harnes swap for CIS-E3 (or other)

[Huw Powell]

> Were you able to remove the entire harness for the engine management.
> or did you have to cut somewhere.  If I recall some of the harness
> branches went behind the climate control box and was only after removal
> I was able to get it out.

You might have to "cut", but it should only be one or two wires.  In
other words, you wind up with one discrete monstrosity.

Also, when I've been doing this sort of thing, the car is coming apart,
so tough wires eventually get exposed making them easy to remove.

> Also,  I thought someone had mentioned the CIS-E3 took the same MFTS as
> the MC/MAC-11, but when I did the layout the other day using 87.5 GT
> harness, the connector was the same as the 4KQ/GT sensor.  Are they the
> same sensor?  That is CIS E sensor is same as CIS-E3?

The temp sender for the ECU is either the same or looks the same.  The
MFTS might not talk the fuel/ign system at all... though there is
usually a wire to the ECU telling it that the AC is on so it can plan on
  more air/fuel for the idle to stay the same.

> Regarding the MC/MAC-11 harness, that will be installed in the Ur
> Quattro I just got.  So I'll have to be interfacing that with the older
> fusebox type wiring.

Well, it's been done many times... and in several cases, undone so EFI
can be installed.  Having watched this process unfold, and helped a
little with some of it... if I were doing a turbo conversion, or even in
the case of an UrQ a turbo "swap", I would skip straight to 034 EFI -
simpler, neater, and user-tweakable.

--
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/