Wiring Problem

[johniban 59 1 Cars]

Not sure if this is the right section, i have spent hours and hours or searching through this site for an answer to my issue but cant find it.

Basically about a year ago i started to restore my 205 1.9 gti, i removed the engine and engine loom from the two brown multi plugs by the clutch pedal.

 

also i had removed the fan assembly, radiator ect, and there was two yellow connecter/junction boxes one either side next to the head lights that had plastic covers over them and a 10mm headed bolt securing them to the body, these were very corroded and fell apart when removing, not sure what they were for? i thought maybe the fan?

 

So thats my first problem is on the nearside i have two yellow plugs not connected into anything, and the offside the same type or plug also not connected, as they were connected two the rusty junction boxes i binned.

 

im not too fussed about the fan control as i can fit an aftermarket switch to run it.

 

i have now finished the restoration and have come to fit a xsara vts engine, ive wired the thick alternator and starter wire from vts loom up to postive of battery, and negative from batt to gearbox.

The main problem i have is i cant get any ignition light to come up, how is the cars electrics connected to the battery? im missing something and i dont no what. ive connected a live from the end of the black box on the slam panel to the positive of the batt but still nothing, cant get indicators, lights, dash lights nothing.

 

does the big relay that is attached to the 1.9 engine loom have anything to do with it? think its todo with starter and fuel pump?? was hanging down by throttle pedal. is this needed?

 

the xsara vts engine im using is going to be ran on carbs, i have the dizzy conversion already, im just stuck at the moment trying to get the basic ignition live

 

any help would be appriciated

 

 

[ORB 227 1 Cars]

Yellow plugs are the earths, my advice is to cut them off and crimp ring connectors and bolt them to the body near the radiator.

 

The big relay is the fuel pump relay. Not required.

 

Don't run carbs, either use standard manifold, or ITBs

Oh, connect your earths and all your lights will work!

 

[dcc 855]

dont cut them off. go to a scrapyard with a 205 in and get them from the boot or under the dash (by the left hand drivers knee on the steering column)

 

The xsara vts wiring is very simple. have you given the loom +ve, including the airbag and ECU, have you given it an earth too. the only other wire required is the fuel pump wire to start it.

 

under the steering column is a resister to dim the lights. if not plugged in no lights on the dash.

 

have you plugged in ALL of the plugs on the clocks, inc. the little blue on on the back?

 

have you plugged in the earth block under the steering column.

 

have you plugged in the earth shunt on the underside dash above the fuse board / relay board in glove box.

 

you shouldnt have any of the old wiring loom in the car if you've converted to the gti6 wiring. only thing to keep would have been about 6-12 inches of the wires from the plugs under dash to solder to.

 

as above, a bit lost as to why you're going for the carb conversion. as if so you might as well bin all the vts related wiring and build a basic loom.

 

 

also indicators only work if the hazard plug is in

[johniban 59 1 Cars]

Thank you for your detailed replys I appreciate it. I've not touched any of the dash loom I've just unplugged the 205 engine loom from the two brown 9 and 6 pin plugs hanging down by the clutch pedal as the guides on here suggest. I really don't want to use the ECu I want the car to be as basic as possible and love the sound of carbs but can't afford throttle bodies . Really want to stick to the carbs route. It won't be an every day car so not to bothered about performance or fuel Ect. That's what I need to do really is build a basic loom but I'm stuck at the moment to why I can't get the basics of the car to work off the battery? Can't get any ignition lights up lights to work Ect. Like I'm getting no live to the ignition at all. I'm guessing the car gets its live from that black box bolted to the nearside slam panel? It's been so long I can't remember so I bolted a cable to it and to the positive batt terminal. Also there is a lonnnnng thick wire plugged into the underside of that black box and goes to the underside of dash and into that big relay is that needed anymore?

[johniban 59 1 Cars]

Orb.. Connect what earths and all lights will work? The ones you mentioned?

[Anthony 1,003]

It's not immediately clear, but you have made a cut down loom and plugged it back into the two brown multiplugs under the dash, haven't you?

 

If there's nothing plugged into them, you'll get no engine related lights on the dashboard, no guages (other than speedo and fuel) will work, and they'll be no feed to the fuel pump and no ignition feed to the coil.

 

The ignition-on dash lights are primarily driven from the oil pressure switch (STOP, oil pressure, high coolant temp lights) and alternator excitor wire (battery/charge light)

 

The earths either side of the headlights are unrelated, but you'll find that the radiator fan and the various front lights won't work without them connected.

[johniban 59 1 Cars]

Anthony, thank you for your reply, you have kind of made it a bit clearer for me now,

 

yes i have just basically removed the 1.9 engine and engine loom, i just wanted to make sure the lights, horn ect all work before i go ahead and make up a new loom to run the carbs.

I was just having alot of head scratching as to why i was getting no lights up on the dash, but youve just answerd my question really as i have no sensors plugged in to light up the lights.

 

All i really need is a switched live from the ignition to run to the coil and to the new low pressure fuel pump to run the engine,

but what i cant work out is how i get a feed to the starter solonoid? as it orginally came from the fuel pump realy did it not? but now i have removed that.

do i just run the starter wire from the brown multi plug straight to the starter solonoid? surely i need to use a relay for the starter to function? i cant see it will just work wired off the ignition switch?

i have tried to wire the starter solonoid to the starter wire on the multiplug as shown on the guides but i dont get any power to the starter when trying to crank with the key.

 

obviously the ignition switch needs to get its power from the car battery, is this coming from the black box on the slam panel? that i have attahced the the positive post on the battery as where i think it needed it but i cant remember.

 

sorry if this is hard to understand, its frustrating me now...

 

I just need a feed to the starter solonoid so it runs off the ignition switch

and a switched live from the igntion to run the coil for the carbs.

[Anthony 1,003]

Starter solenoid is from the brown multiplugs under the dash - it's wire 46, normally light blue in colour.

 

There's no relay in the circuit as standard - the tachymetric relay on the 8v uses the starter feed to run the fuel pump on cranking, that's all.

 

Ignition barrel/switch is fed from the fuse box, which is in turn fed from the shuntbox - it's the black plug with two thick brown wires.

 

Ignition feed for the coil comes from the brown multiplugs again - it's wire 2, normally thick red wire.

 

The wiring diagram in the back of the Haynes manual would be a good place to start if you're trying to make a sensor loom from scratch.

[dcc 855]

make sure the interior loom feed is plugged into the bottom of the black shunt box on the slam panel.

 

starter solenoid is the thick blue wire on the 205 engine loom. you will find it in the under-dash multiplugs. I think wire 46

 

you will also find a switched live in the multiplugs for your coil take off - thick red wire I forget the number.

 

the fuel pump is the thick white wire in the multiplugs, cannot remember the wire number either as im at work.

 

There is a picture somewhere (which is on my home pc) which will show you what each wire does in the multiplug and it will also show you what wire to connect to the vts/gti6 loom

[johniban 59 1 Cars]

That makes sence now thanks,

So the dash loom will be live as long as that shunt box is live,

So I can now get my feeds from that muliplug all should be ok, and ill wire up the sensors I need, I kind of understand now