After much discussion with
myself I have decided the front engine bay wiring loom will have to be split.
The first half follows the existing route and contains the wiring for the lights,
fans and horns. The second half of the
cabling links the internal fuse board to the engine bay relay box and will
route back to the location of the internal fuse box using the same hole in the
bulkhead the wiring harness used from the engine control unit (ECU) in the car
to the engine harness connectors.
The other benefit of doing
this is I can remove the huge connector that was connected to the ABS unit. I don’t know whether I will need to keep it
in the harness but by doing it this way I can bring the all the cabling inside
the car under the dash.
It took a while to unwrap
but after an hour or so I was left with a mass of cables on the garage floor
and I’d had enough already of working on the garage floor. I set up the wallpaper pasting table and the
workmate, laid cardboard sheet over the two and laid the cabling out on the
cardboard and began separating the cables into four groups common, ABS, front end
connections(lights, horns, fans etc) and internal wiring. Thank god I labelled every connector
well. 2 connectors were dedicated to
ABS. There were over half a dozen other
cables for the ABS connector one was power from the fuse board so that was quickly
cut and pulled back. There were actually 4 separate commons, 2 were on a
separate connector (I assume for fault finding) and two others wired into the
common cable. These I cut also.
Next were the lights, the
main cabling was fine from the fuse board and easily segregated but there was a
loop back into the car which I would have to chop and extend. There was a mass
of offside indicators wiring as the side indicator and main indicator were
combined. I coiled up and cut to extend.
The side lights were next to get the same treatment. The only outstanding problems were a pair of
connectors that were unused in the donor car I suspect they are either day
running lights or possibly the fog lights.
I will have to check the wiring manual.
Now it was the time to
check the other connectors. The Fans
were okay although I had to run a new common back to the main common
connector. There are also a pair of
commons that previously connected to the metal body work on the donor car. I kept them on for know and will extend them
to the metal sub-frame if necessary.
The only other pair of
cables was the air intake temperature sensor which I will extend I’m just not
sure how far to extend it though.
With regards extending
cables, I have a bunch of crimps but chose to extend the cables by soldering
the joints and covering the joint with heat shrink tubes. I specifically chose cut points that I should
be able to get to once the loom is back in place in the car should I suffer and
problems later. I know the headlights
will need the connectors cutting off but not until the headlights are in place
and then I will create a loom and use the crimped bullet connectors.
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