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View Full Version : xe wiring help please, losing the will to live!!!!!!



jaywalker
09-04-10, 10:34 PM
hi everyone (again lol)

im trying to get the nova xe back up and running properly again, but the wiring seems to be having me beaten , im having problems with the digis, there wired up as suggested on here in the dashboard, but everytime i start it i have the rev counter, but then it goes off, i the press the brake pedal and the dash goes dim and you can hear a clicking sound (like a solenoid) everytime the brake pedals touched, i have looked in the engine bay and there are just lots of wires that are not connected
i dont know what they are for or even if they are supposed to be connected, i bought the car with the conversion already done, so i dont know how its been wired in, or if its been done properly, tbh there are bare wires everywhere & i just need to know if they should be connected to anything,or just taped up
there is also a connector from the front of the sump, where does this connect to? anyway i have taken some pics so you can see if they should be connected or not, please help its not that far from being ready for painting again and mot!! if there are any guys local to wolverhampton who could pop down for an hour, would be much appreciated,

this was just lying by the coil, not even taped up either!
http://i146.photobucket.com/albums/r279/jay5706/100_0898.jpg

another bullet connector not connected or taped to anything
http://i146.photobucket.com/albums/r279/jay5706/100_0899.jpg


these were taped up but as you can see they have not been connected very well & have piggy back connectors but are not piggied to anything
http://i146.photobucket.com/albums/r279/jay5706/Copyof100_0893.jpg

http://i146.photobucket.com/albums/r279/jay5706/100_0895.jpg
this was taped up along with a few others but not plugged into anything?


http://i146.photobucket.com/albums/r279/jay5706/100_0894.jpg
these are running along the cross member but there just cut, and not even taped up!


http://i146.photobucket.com/albums/r279/jay5706/100_0896.jpg
this wire is branching out of a few wires which are going to the coil


i have acquired another xe loom for the conversion, but dont know if this would help, as i dont know if its the xe loom thats the problem,, not an auto electrician, so please if there are any guys close to wolverhampton who could fix my problem, please let me know

cheers jay

Benn
09-04-10, 10:39 PM
Cut all the crimps off and start fresh. Solider everything and heat shrink it.

Use the guide on here and you'll be sorted.

If you've had the car running, then the black plug that was tapped up has been taken from father up in the loom.

jaywalker
09-04-10, 10:49 PM
yes thats easier said than done but are the wires from the nova loom or the xe loom, thats what im struggling with, are they supposed to be connected or not,wheres the other end to the sump connector wire, or is that not used either?

thanks anyways though

craig green
10-04-10, 12:18 AM
The sump thing is a wire for an astra or cav that would flash up a light on the display for low oil level warning.

The XE loom only needs 5 wires or so to actually work. These should all be on one plug that is either spliced into the car loom or wired in in some way. However these wires need to be sourced & picked u from wherever & you end up having wires parted from looms & reaching all over the bay to connect up. Tidy this all up & group it into one plug is the tidiest thing to do.

jaywalker
10-04-10, 12:44 AM
so would you take the xe loom out and put the new loom in? & then whatever wires are not used just tape up & hide away?

still doesnt solve the problem with dash either, any ideas what the problem could be? got a transducer in, got 2 different digi dashes and it does exactly the same on both, 1 is tick other is curve type dash, followed the diagram wire for wire, so dont know why its not working properly, it lights up fine on turn on, start it up and touch the brakes and the revs come on, take it off and it goes out? need help, is there nobody out there who could come over & give me a hand, i will pay them if that is the problem ;-)

craig green
10-04-10, 12:45 AM
The green wire from the coil is usually the rev counter signal.

I'd say theres an earth not not grounded properly on the loom somewhere maybe.

jaywalker
10-04-10, 10:49 AM
ok will try & find all the earths and check them

Adam
10-04-10, 10:54 AM
Bin the loom and get one that aint cut to f**k

A xe only needs 3 wires joining to the car to run....

jaywalker
10-04-10, 11:05 AM
bin which loom?

craig green
10-04-10, 11:09 AM
The XE loom thats all cut up.

jaywalker
10-04-10, 11:16 AM
i have a pretty mint loom, so the picture of the wires is off the xe loom then and not the nova loom?

jaywalker
10-04-10, 11:16 AM
i mean i have anothere xe loom thats pretty mint, no wires cut etc,

jaywalker
10-04-10, 11:27 AM
anyone fancy fitiing it & sorting out the digis and all the gremlins i have as im just useless with wiring, pm me if your interested in the job with a price please, just hgavent got a clue with the wiring side, even if i do follow the guides!, if i did have to do it would the engine need to be removed first, or could i do it with it in

jaywalker
11-04-10, 11:40 AM
anyone???

Nobby
11-04-10, 10:31 PM
i would fuk the digis off and get the car running properley and wired in properly get your "mint" loom on and get it wired up correctly there loads of guides in articles section use that its a peice of pish mate

General Baxter
11-04-10, 10:34 PM
looking at it, the rev counter is wired up wrong, looks like you have taken the feed from the coil its self

in sure this wont work being ecu controled

at the feed has to go to the ecu first, then to the clocks,

or am i talking out my crack ?

jaywalker
11-04-10, 10:37 PM
the car starts and runs fine, its just these digis that im having the problem with and the random wires that are not connected to anything, looks like its back to basics then & start again from scratch, is it easy to do, i mean, i am a complete novice when it comes to wiring, but if its easy as you all say it is then maybe i should have a go, i take it the engine can stay in the car

General Baxter
11-04-10, 10:38 PM
where abouts in wolvo do you live lol

Nobby
11-04-10, 10:38 PM
the car starts and runs fine, its just these digis that im having the problem with and the random wires that are not connected to anything, looks like its back to basics then & start again from scratch, is it easy to do, i mean, i am a complete novice when it comes to wiring, but if its easy as you all say it is then maybe i should have a go, i take it the engine can stay in the car

well it all depends how compertant you are pal! If the car is running fine and your just being picky about the digis then i would get a competant auto sparkey to wire them up for you and tidy up the loom.

jaywalker
11-04-10, 10:44 PM
then i think thats what i need to do, i would rather of give the job to someone who knows about novas rather than ring a random spark, and have him charge me a fortune, but if its just a case of plug n play & splicing a few wires here & there then i would have a go myself, but would rather i have someone giving me a hand who has 1 or done 1 and pay them a good drink for there help!

jaywalker
11-04-10, 10:47 PM
any takers or at least a number to call a decent sparky

jaywalker
11-04-10, 10:55 PM
or is the lonely road to face my fears lol

Rich
11-04-10, 11:13 PM
the problem is noone wants to be chasing wires around that somone else has already cut up and bodged lol

Sounds like its a problem with the rev signal (green wire) but its a bit difficult to diagnose over the internet because anything could be wrong with it!

Wheres the 3 plugs that come off the xe loom connected?

jaywalker
11-04-10, 11:25 PM
i see, but surely if im going to take the old loom out and put the newer 1 in, they are starting from scratch? i have no ideas where the 3 plugs are connected :-(

nova_saloon
12-04-10, 12:35 AM
o dear mate what a mess seriously
what you need to do it get a bigg wooden board and then take all the rubbing casing off and map out the entire loom to fix it proper. and like always solder and shrink wrap

jaywalker
12-04-10, 09:25 PM
ok, so where would you start to unplug everything, the ecu end then feed it back through the bulk head, how is the fuel pump attached?, is that spliced somehow into the nova gsi loom?, is there any of the xe loom that should/shouldnt be attatched into the fusebox? then once its all taken out, then what? do i have to take the nova loom out or is this just plugged into the xe loom, there are just wires everywhere and i dont know until i take the xe loom out if it belongs to the xe or nova loom, is the nova loom just used for lights etc and the xe is used for everything else then? any experiance on removing this would be really helpful, thanks for all the advice so far peeps,:thumb: credit to you all

jaywalker
14-04-10, 09:44 PM
up

Benn
14-04-10, 10:12 PM
Un plug the ecu, pull the loom thru, get it off the engine.

The fuel pump is connected to the xe engine loom which is a thick red/blue (which will have the relay on it) which connects to the red/blue on th nova loom if it was injected, if not then the blue/red needs to be run thru a fuse(20amp iirc) (fitted mine nicely in to the fuse box) and then wired to the fuel pump.

jaywalker
15-04-10, 06:23 PM
ok, will start to remove it saturday me thinks, wish me luck peeps

thanks everyone for the advice & will let you know how i get on

Benn
15-04-10, 06:55 PM
Put the new loom on, plug in every thing in that you can. Dont cut anything.

Read up on here and any other sites you can till you know what to cut and join.

Solider all joins.

jaywalker
18-04-10, 10:52 PM
thanks for the advice have started removing it today, there are so many things that have been bodged its unreal, thanks again everyone, you never know the gsi might be at a show this year, not finished but there at least!! lol

Adam
18-04-10, 11:01 PM
As Benn said really. Bin any loom thats been hacked about. Put a good one on and then youve got 3 wires to get the engine running, you cannot go wrong.

jaywalker
18-04-10, 11:10 PM
yeah the 1 i have got has all the connectors on & has a diagnostic plug fitted as well, im going to fully remove the old 1, lay it out aginst the new 1 to see what is missing, then print off the guide on here and label everything up on the loom as per the guide, then re fit it, and as for the digis im going to remove them also and once the loom is re fitted start again with fitting them to see if that cures the problems with the rev counter and mph, then fingers crossed should be sorted :thumb:

Benn
19-04-10, 08:04 AM
Having a good loom makes the world of difference.