New loomage

Would anybody care to recommend somewhere that sells complete/partial 1.8 16v wiring looms, as thinking of changing the ancient fusebox in my mk1, as the wiring has been so messed around with by the previous owner im thinking a fresh start would be the best approach.

Thanking you

Richy

best looking for so0meone braeaking a later tintop/cabby with the blade fusebox, then get an engine loom from a pre-90 MK2 Golf.  no-one I know sells them 'off the shelf' but its not difficult to make your own really as the kr has next to nothing really in terms of wiring

many thanks, that was my initial thought, as ive noticed theres not a great deal of wiring in the bay, just wondered if anything off the shelf would be available.  Would it be relativly simple to do, as in a straight(ish) case of replacing the existing fusebox, and the engine loom? Also the haynes wiring diagrams make me confuddled, is there any easier to use ones out there?

Ta   

tim styles used to sell them not sure about now though!

I like VAG wiring diagrams personally, once you figure out how to read em its pretty simple.  Here's a how2:
http://www.vwgolfmk1.org.uk/modules.php?name=Forums&file=viewtopic&t=38676

the ignition controller loom on a 16v is as simple as it gets, plug n play into an existing engine loom as it has nothing to the fusebox except the fuel pump trigger wire. if you use a mk1 k-jet fuel pump relay without a rev limiter in it you don't even need to hook that wire up.

if you want to replace the whole car loom with a later one, its pretty straight forward. main difficulty is getting it laid out as neatly as original, takes a bit of thought

advantage of the later blade fusebox is there are a lot less random wire connectors behind the fusebox for stuff, and less extra relays & fuse holders clipped above the fusebox. Most of the wiring is integrated into the fusebox instead.  Plus with the haynes wiring diagrams for the MK1 being very good, its easy to figure stuff out.

The MK2 haynes diagrams are pathetic in comparison, they're not in order and at least 50% of them are missing!

Thanks for that, printed it off so i can spend the day looking at it, always had a fear of electrics, and yes the Haynes mk2 wiring is awful.  Ive managed to get hold of a mk1 blade fuse box so ill have it within a few days.  In order to change them over, its just a swap?  And as for the engine loom    (still trying to hunt one), that just plugs into the ECU, with only the mentioned wire going to the fuse box?  Sorry to be ignorant to this, wiring isnt my forte and the loom is in a bit of a bad way in my car.

Thanks

the fusebox i think just fits, its the rest of the loom that can be a bit of a pain to fit

the ign loom i mention is literally just that, the bit that does the ignition. this doesnt cover all the cold start bits, sensors etc etc, that you'll need a proper engine loom for. if you get a MK1/cab/rocco k-jet injection loom, most of what you need is there.

only extra you'll want is the ISV control setup, though you can do without. some have used a MK1 type AAV instead, or just done without entirely. you have to up the idle a bit and it'll run a bit poor when cold tho.

I've just done a MK1 16v loom, not much work there just a few tweaks on the loom lengths. most of it is too long, just 3 wires for the ISV setup that need to be lengthened.

 Ive managed to get hold of a mk1 blade fuse box so ill have it within a few days. In order to change them over, its just a swap?

u cannot just fit the later fuse box without major work to the loom, a late cabrio loom is a good bet to go for.

is it a bullet fuse box u have on now? or a fusebox from a 1.8 with blade fuses? a pre 90 fuse box will be a straight swap but unless you have problems why would you want to swap it?

Its a bullet type one, which itself is in a bit of a state, being cracked and a mounting broken its just looks shabby and i don't want to just bodge it up under the dash that all. and the new one is pre-90, its from a series 2 mk1 gti.

cool, just make sure its a later enough S2 to have the blade fusebox, I worked on an early S2 which still had the old type fusebox

Rubjonny, would it be possible to send a wiring diagram of the loom you mentioned that you made, if that ok of course?

 The car doesn't have the ISV connected at the moment, or the cold start injector and its annoying waiting for it to stop running badly before i can drive it even slowly.  Ill see if i can get hold of a complete kjet engine loom on the weekend if the local vw breakers come good.  The majority of the wiring inside the car, lights, stereo etc is fine, so itd be a case of using a bit of both looms, im taking it thatd be ok?  
Sorry again, just dont want to mess it up lol

Cheers to both

the new one is defiantly a blade type, with broken one im replacing is a bullet type.  
Ta

Blimey….richygolf, I'm on this subject myself and you do not seem as sad as me with electrics…(lol) where did you get your loom and box from then and I am presuming that this process is aresonable swap for swap because mine is in a mess too QUOTE: as the wiring has been so messed around with by the previous owner im thinking a fresh start would be the best approach. UNQUOTE..

I have a complete pre-90 MK2 16v wiring diagram, which is perfect for the blade type mk2 fusebox because its the same  pm me your email addy and I'll send it your way.

as you say, as with any engine conversion loom its a case of using bits of both. for the MK1 I used everything from the MK1 loom that isn't for the engine management i.e. oil/temp sensors, wiper motor etc and added in everything from the mk2 loom that is for the engine management

You'll also find that the 2 wires from the cold start system run to spade connectors, so its simplicity itself to shorten the mk2 wires to suit and crimp spades on, then plug in as per MK1.

The ISV controller loom is completly seperate from the fusebox except it requires 2 ignition live feeds, one for the isv control unit itself and another for the throttle switch. so that's dead easy.
Last of all the ignition controller, that's totally self contained except it has a 2 pin plug with a yellow/red and yellow/black wire. yellow red goes to fusebox (fuel pump trigger) yellow/black goes to idle switch loom. easy!

With the fuel pump wire, if you get a pre-90 16v MK2 loom this is ideal, just chop the fusebox plug apart till you can remove the red/yel wire, unless you can find a fusebox pin removal tool that fits.  If its a post 90 you need to find a donor plug you can chop up and splice this wire to.

Or you can just skip it and fit a blade fusebox type fuel pump relay for a k-jet 8v without a rev limiter built in.  These can be had from GSF:
93592 k-jet relay without limiter £ 23.20

:?  So in laymans terms you are saying get a mk2 wiring loom and fusebox then?

Would it be possible to email me that diagram?

Right i think ive got that bit in my fried brain many thanks for that, just need to find a loom now, if im not able to, you mentioned making my own would be relatively simple, itd be a case of getting the correct wires/connectors and going from there, with a diagram?  Might get the relay you mention, sounds easier and i need all the help i can get i think. With the mk2 16v ECU that the car runs at the moment.

Cheerys

An Muttley, im in no way confident in myself with this lol.  Got the fusebox of a lad who was breaking a mk1 with the later fusebox, now ive got to track down a mk2 16v engine loom, then rub them together and hope it works lol.  Thankfully theres some really helpful people on here, not like some forums.

muttley: I'm saying get a MK1 engine loom and a MK2 engine loom
combine the 2 to make a MK1 16v engine loom
You can really just plug a MK2 loom in and expect it to work, because on the MK2 the fusebox is on the driver side of the car, whereas on a MK1 its always on the left side of the car regardless. This means the lengths are all wrong, so tweakage is required.  To make this easier you keep as much of the MK1 loom as you can, to reduce the amount of chopping & splicing required.

If you could find a LHD KR engine loom that would probably be pretty much perfect,  however most euro spec MK2s tend to have the PL code engine rather than KR, which means its slightly different again.

richy:  pm me your email address and I'll send it to you

There are some good people on here bud I will second that but like everywhere you get the wrong types too, good luck with the project let me know how you get on and then I to will venture into the realms of the unknown wiring electrics...lol.