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Model specific boards => Golf mk1 => Topic started by: SoundillusioN on 27 March 2010, 17:05

Title: MK1 Rewire Help
Post by: SoundillusioN on 27 March 2010, 17:05
Ok so you may have had a peak at my project page here http://www.golfgtiforum.co.uk/index.php?topic=121364.0 (http://www.golfgtiforum.co.uk/index.php?topic=121364.0)

Sorry this is a BIG post....  :sad:

Wondered if anyone could help me identify where the following are supposed to connect to.  I believe some of these wires connect one loom to another for example:
An engine loom wire to a dash loom wire for an instrument or warning light etc.  One or two of them may have their own connection at the back of the fusebox but i'm not sure where???

The following come from the Engine loom, the same loom with the large white fusebox connection:

Two Red and White wires on one White connector
(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/72de3125e1424446a64f6aceda0c89ea)

Brown and White wire with Red connector
(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/9aeeb412d7264fb2a0bf06b2dbcae419)

Green and Black wire with White Connector
(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/1d2e8500182549f4ab05ed7ade162d5c)

Two Green and White and Two Red and Black wires with a White double connector
(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/6c4eb9510f5d4e178eab8d8684cf3e3a)

These next wires are on the dash loom, the same loom that has the large Red and Blue fusebox connections:

Solid Yellow wire with white connector
(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/bb0e8c0108a846968f12867b916a2375)

Solid Black wire with white connector (I believe this is for the fuel pump and goes to the back of the fusebox, just not sure where) :sad:
(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/db48137bcba14d149721c8e9bb95fe32)

Blue and Brown wire and Grey and Green wire into single white connector
(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/f1a18fef3ada4d0fa1384966df23143b)

I know where this next one goes in the back of the fusebox but this Black double connector, should there be another wire in it other than the Grey and Yellow one pictured??
(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/97012430d4be4360b7b4aed31870bb83)



Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: kraM on 28 March 2010, 16:50
The red wires go into one of the many 12v out-puts at the back of the fuse box,

The black/green wire I am faily sure is a rev counter/coil wire

There will be the other side of that red plug for the brown/white wire

Blue and brown may be interior lighting

Dunno about the others, but the black wire may do something at the back of the car, but I am faily sure a red/yellow wire is the fuel pump colours.

Or look on line and get the orignal type haynes explains for your model (the new ones are sh!te) buy a packet of biscuits and teabags and learn how to read their wiring diagrams, then it will all become clear, young sparrow.

Cheers

kraM

Ps, buy a decent fire-extinguisher... :wink:
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: rubjonny on 29 March 2010, 10:42
1. this is most likly the power feed for the WUR, this needs a fuel pump live

2. earth

3. oil temp sensor wire

4. feed from the 5th inj (green/white) which is unused, and another for the 5th inj themoswitch, which needs a starter cranking live. you will likely find a matching red/black wire which plugs into this side of the 2 pin plug. Check plug C pin 18 for a single spade wire

5. think this is for the dim dip, leave it disconnected

6. ignition live feed for the hadbrake warning switch I think

7. may be a lights on feed?

8. might be for rear fog light?

follow where the wires go if they run to fusebox pins then check the fusebox faq. you want the section for the pre-90 MK2 Golf :)
http://www.golfgtiforum.co.uk/index.php?topic=44637.0
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: SoundillusioN on 29 March 2010, 20:00
The red wires go into one of the many 12v out-puts at the back of the fuse box,

The black/green wire I am faily sure is a rev counter/coil wire

There will be the other side of that red plug for the brown/white wire

Blue and brown may be interior lighting

Dunno about the others, but the black wire may do something at the back of the car, but I am faily sure a red/yellow wire is the fuel pump colours.

Or look on line and get the orignal type haynes explains for your model (the new ones are sh!te) buy a packet of biscuits and teabags and learn how to read their wiring diagrams, then it will all become clear, young sparrow.

Cheers

kraM

Ps, buy a decent fire-extinguisher... :wink:

Thanks for the reply, I'm starting to get sick of all the tea and biscuits now, must be better than all the fags i smoke at the moment though!!!   

Defo buying a fire extinguisher for the car when i'm ready to trial stuff!!!!!

I have no solid red wires in this post, only red and white and red and black, don't think these are just looking for a live feed??

Between your reply, rubjonny's and anyone else that can help, i'm sure i'll get there..  :smiley:
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: SoundillusioN on 29 March 2010, 20:35
Thanks mate, i thought i was going to be OK as i found a couple of connectos that link one loom to another but these last few have been a right pain!!  added to your reply below (sorry)  :embarassed:

1. this is most likly the power feed for the WUR, this needs a fuel pump live
I'm guessing that this needs to connect to a live coming from the pump?? Out of curiosity, why are there 2 wires in one conector? why didnt they just use one?

2. earth
I know that solid brown is earth and in most cases go to the crowns but this one is brown and white.  with that red connector it makes me think its for something else

3. oil temp sensor wire
Im guessing this must link to something on the dash loom?

4. feed from the 5th inj (green/white) which is unused, and another for the 5th inj themoswitch, which needs a starter cranking live. you will likely find a matching red/black wire which plugs into this side of the 2 pin plug. Check plug C pin 18 for a single spade wire
This could be an easy fix then thanks.

5. think this is for the dim dip, leave it disconnected
whats this then, for countries that require DRL?

6. ignition live feed for the hadbrake warning switch I think
Makes sense, i think i have a solid black coming from the handbrake now you mention it

7. may be a lights on feed?
Just not sure where to plug it in  :embarassed:

8. might be for rear fog light?
If there isn't meant to be a second wire in the connector i'll just plug it in the back of the fuse box where it belongs.

follow where the wires go if they run to fusebox pins then check the fusebox faq. you want the section for the pre-90 MK2 Golf :)
none of these wires run to the fusebox pins (if you mean the pins of the main plugs).  All these wires are at the fusbox end of the looms though.  Thanks for pointing me to in the direction of the fusebox FAQ!!!


Thanks again!  :smiley: :smiley: :smiley: :smiley: :smiley:
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: rubjonny on 30 March 2010, 11:32
1. you should have a spare spade plug for this on the rear wiring loom plug, E/14. The reason it has 2 wires is probably there are 2 components in the engien bay that connect to it, possibly the IAV or something :)

2. brown/white are almost always earths as well, usually for temp sensors. Ideally go back to the engine side and look for any brown/white wires, then use a multimeter to check for continuity. Then you'll know exactly what it is for ;)

3. indeed, there will be a green/black spade plug coming off the dash wiring loom somewhere for it

5. most euro spec MK1/2 have this, all it does is bring the dipped beam on dimly with the lights. not required by law or MOT :)
however thinking on it again, I recon its actually an oil pressure switch wire, I remember now that I had the same behind my dash. You should find a matching spade plug coming off the dash loom, or to pin D/1 or D/21 on the fusebox

7. if in doubt, leave it unplugged! This one looks like its coming from the fusebox plug in the same picture?

8. I would plug it in yeah, then check everything works :)
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: SoundillusioN on 01 April 2010, 12:45
Thanks for the above mate... i will hopefully have some time to have a look over the weekend if the missus doesnt make me do too much stuff to the garden!  I'll let you know how I get on and hopefully I will be able to add some more positive stuff to the project page!!!!
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: SoundillusioN on 11 April 2010, 15:51
Ok shes all wired for engine and dash, just not wired lights up yet... problem is is wont start!  it does crank though, fuel pump doesnt prime.  i was really scared of putting the battery pos on but no dramas... going through the previous list here i found the following.

1.  found matching spade to plug in.

2.  plugged into earth crown

3.  still disconnected as cannot find a matching spade anywhere!

4.  still disconected as also cant find anything left to go into it.

5.  left disconnected as advised

6.  plugged into top right of fusebox as this is where it is plugged in on pictures shown on mk1golf.org

7.  still disconnected, cannot find anything for it?

do you know why my fuel pump wont run.  i can hear relay click on for a couple of seconds as it should?
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: kraM on 11 April 2010, 21:35
Has the red/yellow wire feed to the pump become un-plugged?  As after I had re-wired mine, half the 'kin plugs fell apart after I had twisted the fuse box back into the hole...

kraM
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: rubjonny on 12 April 2010, 09:13
pop the fuel pump relay out, and run a chunky wire between the 2 large sockets, the pump should then run. if it does, you know the issue is the relay, or the wiring for it.  what relay is it by the way?
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: SoundillusioN on 12 April 2010, 09:38
pop the fuel pump relay out, and run a chunky wire between the 2 large sockets, the pump should then run. if it does, you know the issue is the relay, or the wiring for it.  what relay is it by the way?
Yeah thats how i got it running before the rewire when i had to bypass the alarm system.... The point of the rewire is to have it all running normally again but yeah, good point to do this again to see where the fault may lie...  At work at the moment so not sure what answer you're looking for with the relay.  its relay 2 but funny you ask as its the one that came with my replacement fusebox?  could it be different?
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: rubjonny on 12 April 2010, 11:21
its possible aye, does it have a number on the front or a part number?  gsf sell the relay you need:
935VG0090 k-jet relay without limiter £ 23.20
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: SoundillusioN on 12 April 2010, 12:17
i have two relays, one in each fusebox, original and replacement.. the old relay was fine.  it didnt work because the looms were fooked after engine was put back in. i'll make sure both the relays are the same and correct... chances of them both being dud are slim... I think there's something wrong with the wiring... I'll do what kraM said and make sure everything is connected OK and also try shorting the Pump relay points to rule out faulty relay.... PS relay without limiter??.. what would have been limited?
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: rubjonny on 12 April 2010, 12:23
didnt you have ceramic fusebox before? if so I dont think the pinout is the same?

rev limiter :)
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: SoundillusioN on 12 April 2010, 13:03
I have replaced like for like?..... its an 83 Campaign with type 2 fusebox? whats the pinout?.... sorry question after question now, its that crucial point in the rewire though... making stuff work...
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: rubjonny on 12 April 2010, 13:59
ah ok then it should swap over. pinout is as follows:

1 - earth
2 - live
3 - output to fuel pump
4 - ignition live
5 - rev counter signal

theres a piccy in my fusebox faq showing the pin numbers of the socket, but it should be written on your fusebox anyway
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: SoundillusioN on 12 April 2010, 14:21
cool.... i'll have a very close inspection of this area then... i'm still wondering if its got anything to do with spare wires behind the fusebox..... as soon as i get home i'll do some tracing... I have tested igntion electrics and everything seems to be fine first time, coil power etc.. fingers crossed i get to the bottom of it asap!
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: SoundillusioN on 12 April 2010, 20:31
SHE'S ALIVE!!!!!!!!!!!  :shocked:

The stoooopid thing is i dont even know what was up exactly!  I pulled everything back out of the fuse box and plumbed it all into the original (which is identical). turned the key, still no prime but i noticed when cranking the fuel pump was running?? i kept lettting her crank to get the fuel pressure up (as i had dismantled the system so would have been empty) and low and behold she fired up with no fuss.  I then found the relay which was originally on the car (which isnt a vw item) and this time she primed properly and started perfectly....

Thanks guys for your help so far and RJ you're a legend and you know it. 

I still have a way to go though, i want to see if swapping fuse boxes was a fluke, i think there was just a few crap connections as suggested by kraM. so i want to try with new box as its better condition.  funny how the pump relay from the replacement fusebox didnt prime but again could have been a bad connection at the time.

I have quite a few other things to tackle now, i know the cold start valve isnt connected and has nowhere to go yet which is odd, and obvioulsy i have nothing else wired in yet.

thanks again everybody.
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: rubjonny on 13 April 2010, 14:07
forgot to mention, not all the k-jet relays will prime the pump, as long as it only brings on the pump when the engine is cranking/running its all good :)
Title: Re: Rewire Help - Wires not part of main fusebox connection blocks
Post by: SoundillusioN on 13 April 2010, 14:23
Its what i'm used to.  :smiley: it wasn't doing anything to start with but a combination of fiddling got her going!  it now primes with igntion on so well happy, when i get home i can move on to the rest of it... watch this space......  please.... lol  :grin:
Title: Re: MK1 Rewire Help
Post by: SoundillusioN on 14 April 2010, 23:02
OK so heres the next round.  :smiley:

1. Above the oil filter there appears to be a sender, the bit at middle right with a white ring, it doesnt look like anything can connect to it.  what is it and should there be a wire?

(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/2704730f5fc34ec5b02503b946c1ad42)

2. Although i haven't managed to wire up the cold start valve i always noticed that i have two plugs in this area, one of which can barely reach.  the blue one was the one that was always plugged in, the other was never plugged into anything, any idea what its for?

(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/774c1f7c6719411a9d259ce255d9ae12)

3. not important but i am having to fabricate stuff as my new looms dont have everything my old looms did... this additional relay was in my old box but was not wired to anything when i got the car back... i looked up the part number which came back as a compressor relay! what else could it have been for?

(http://api.photoshop.com/home_8d19c1b01f164fec89aa6c0c8a5e2c82/adobe-px-assets/762b2d8d7b174f299ee546846daa9026)

Title: Re: MK1 Rewire Help
Post by: rubjonny on 15 April 2010, 14:39
1 - high oil pressure switch. 1.8 bar

2 - blue = cold start, black = auxilery air valve basically 8v k-jet equivilant of isv

3 - could be anything really, just a switching relay i think. ive seen it listed for fan after run before. what colour are all the wires to it?
Title: Re: MK1 Rewire Help
Post by: SoundillusioN on 15 April 2010, 21:05
1 - high oil pressure switch. 1.8 bar
i'm guessing this should be wired.  I have one spare wire in the bay with an oval connector. brown/white wire?  i thought this may be an earth to rocker cover or something?

2 - blue = cold start, black = auxilery air valve basically 8v k-jet equivilant of isv
should it be connected to something, i dont believe it ever was?

3 - could be anything really, just a switching relay i think. ive seen it listed for fan after run before. what colour are all the wires to it?
I think you're right.  she did have quite a few non standard extra's orignally.  the wires are just reds, browns and blacks.  It may have been for the extra fog lights, headlight washers or something?? if its just a switching relay i'll reuse for something... like the bottom lights.   :grin:

Thanks again mate
Title: Re: MK1 Rewire Help
Post by: rubjonny on 16 April 2010, 09:39
1. yeah you should have at least 1 oil pressure wire somewhere, with a spade on. Depending on the spec/year some had 2 pressure wires for both low & high. Either way the wire you're looking for will be yellow or blue. the brown wire with a ring terminal is an earth, run it to the head somewhere.

2. early models i dont think had the aav, if car runs alright then dont worry. the aav is plumbed in behind the inlet somewhere

3. dont worry about it unless something doesnt work!
Title: Re: MK1 Rewire Help
Post by: SoundillusioN on 16 April 2010, 09:58
1.  hmmm, well everything is used up, no spares?? i'm not near the car at the mo but i'm sure there is a yellow used on the right side of the head just under the rocker cover where there is another sender... might have to make a wire then.  That ring connector earth, I did put that to one of rocker cover nuts originally as I though it might help cure my fuel and temp gauges reading max all the time... it didnt. :-(

2.  I'll have a prooper look behind the head and see if there is anything there, but like you said its probably not used and I dont ever rememeber it being connected before the smash....

3.  there were loads of extra relays above the original box and this was the only one i couoldnt figure out it what it was for... no biggie at the mo.

Title: Re: MK1 Rewire Help
Post by: Lee_dub on 16 April 2010, 12:20
could that relay be for the rear wiper?
Title: Re: MK1 Rewire Help
Post by: rubjonny on 16 April 2010, 13:29
1. there should be a single blue wire for that front sensor somewhere, keep your eyes peeled. makje sure you havent fitted it to the oil temp sensor!

3. I think lee has got it! the glass fusebox  had the rear wiper relay clipped above the fusebox :)

Title: Re: MK1 Rewire Help
Post by: SoundillusioN on 16 April 2010, 18:08
could that relay be for the rear wiper?
1. there should be a single blue wire for that front sensor somewhere, keep your eyes peeled. makje sure you havent fitted it to the oil temp sensor!

3. I think lee has got it! the glass fusebox  had the rear wiper relay clipped above the fusebox :)

1.  OK, now i am in the process of putting it all in tidy i shall shall trace the correct wire and see where its gone!

3.  Thanks lee, that would make sense as the rear only needs a switching relay... Plus, i dont need it as I de-wipered it years ago.
Title: Re: MK1 Rewire Help
Post by: Lee_dub on 16 April 2010, 21:56
Can I have it then? I need one at the moment!
Title: MK1 Rewire Help (Fuel Gauge)
Post by: SoundillusioN on 10 May 2010, 22:24
as you will se in my dub rides section ive installed the dash and wired everything up properly... I have now managed to get the temp gauge working (i think).  Fuel gauge is still reading maz witht hte ignition on... i'm 90 % sure it started doing this before the rewire. any ideas of what he cause can be... i have checked for loose earths...
Title: Re: MK1 Rewire Help
Post by: raferackstraw on 10 May 2010, 23:09
possible short between sender wires? or sender itself? or wires wrong way round?
Title: Re: MK1 Rewire Help
Post by: rubjonny on 11 May 2010, 08:48
disconnect the level sensor, if that helps its shot. if not the purple wire is shorted to ground somewhere
Title: Re: MK1 Rewire Help
Post by: SoundillusioN on 12 May 2010, 09:53
Thanks guys, will look at this tonight.  :smiley:
Title: Re: MK1 Rewire Help
Post by: SoundillusioN on 25 May 2010, 19:24
disconnect the level sensor, if that helps its shot. if not the purple wire is shorted to ground somewhere
Disconnected level sensor...... gauge went down to empty... so sender is shot!... probably the result of a 5 year empty tank!  :sad:
Title: Re: MK1 Rewire Help
Post by: richandhazel on 25 May 2010, 19:58
Mentioned it in your other thread but it would be well worth removing it and having a look. Might just be stuck and/or need a clean up. Worth looking at before you rush out and buy a replacement.