right, ive pretty much got the loom out of the car, and its not as busy as it first looks.
heres a brief summary of what ive found...1993 BOA granada...
there are actually three seperate looms that run round the engine bay, one mainly serves the engine, one mainly serves brakes/abs system and the other smaller loom mainly serves the lights. i say mainly as there is some crossover between the systems and some other minor items fed off each of them. there are also two minor bits of wiring at the bulkhead, one of which serves the engine, but its actually part of the engine loom and loops back through the bulkhead - i'll come back to that in a mo.
before you start stripping it out its advisable to label everything up as you undo the connectors, its fairly obvious what everything is. a hand held label writer can be had off ebay for ebay for under a tenner, ive got a Brother pt-55, cost me 6 quid and i find i use it for all kinds of things
the lighting loom loops round clockwise as you look over the engine bay, from the bulkhead down the left hand side and across the front. the other two looms go anticlockwise, down the right across the front and up the left side. you only need the engine loom which is the thickest one, but its easier if you thread them all out.
once you've done that take the whole dash out, fairly simple job. on the passenger side of the engine bay is a fusebox, unbolt this with the two bolts at the front in the engine bay, take the top off, prise the cover out and undo all the multiplugs from the underside. thread these through the bulkhead into the car one by one and remove the fusebox.
inside the car above the passenger footwell, behind where the glovebox was you'll find the ECU, the abs module and a few other boxes, plus some relays, earth points and multi connectors. all the boxes relays and plugs unclip from their mounts, and the mounts unbolt from the bulkhead. remove these, undo the earth points and strip the sound proofing and you'll see where it all goes through the bulkhead. thread the minor wiring back through the bulkhead, you'll see it connects to the engine loom ahead of the ecu connector. undo the large multiplugs and you'll find the engine loom is now nearly free. two sets of wires remain, a large black/red wire that goes to a connector in the centre of the dash ( and on to the fusebox on the drivers side of the engine bay - im not sure where this goes as ive yet to take this box out) and a set of wires that go to a connector on the steering column - looks like some kind of collapsible crash sensor.
undo these and thread the bts of the engine loom inside the car out through the bulkhead, and you've got pretty much all you need.
thats as far as ive got.....
next step is to thread out all the redundant wiring from the engine loom (emissions circuits, auto box bits, aircon etc) and see about wiring it up to the van loom. not sure if i need anything else, as im working without a wiring diagram at the moment, but from what i can see the rest of the dash loom is simple stuff you find in every car, power circuits, lighting, radio etc so should splice right in. i might cut the other half of the large multiplugs off the dash loom so i can connect it up nice and neat, factory look
when im done i'll write a how-to, looks like ive got the makings of one already
2007 T300 110 GLX MWB low roof with Twin side doors & blue ambition paint.
1994 2.0 EFI 80 SWB cosworth 24v work in very slow progress. Radiant Pink.