Gti6 Wiring Problem

[GTI6 style 1]

Hi a good while back i started a GTI6 cversion to a 1.1 carb model car, I tried wiring it up quickly before a house move got in the way but i made a mistake and connected the ignition relay box and lambda to a permanent live,

 

The car got transported to new house and sat forgotten about until now,

 

Im intending to put x2 relays in to switch a clean fused feed from a permanent live on shunt box to feed the ignition/lambda.

 

My question is which ignition live to use to switch them (must be live while cranking too)

I have located a red wire from ignition switch that seems to fit the bill, voltage drops to 9.4 on it while cranking (the batterys not the best tho)

 

Any help or advice appreciated, is my idea a good one? How have others done it?

[welshpug 1,657]

you dont need to add any relays, just connect ignition live to switch the relay already in the loom.

[dobboy 231 2 Cars]

think i'd scrap what you've done and start again. It will make it much easier to fault find in the future, and be much neater (and no fear of fires!)

 

Iirc you only need 3 wires to get it to run, live, switched live, and starter wire.

[dcc 855]

... And an earth surely!?

 

Airbag wire and another wire (cant recall off top of my head) needs a live, fuel pump, earth and i think theres a random earth near the gearbox. Been a few years since I bodged a gti6 loom!

[allye 530 3 Cars]

Get yourself a gti dash loom, then you can use gti clocks and wires it up as per a gti which is easy and well documented.

[GTI6 style 1]

I have built a mini and built ecu and loom for a 1.9 gti on motorbike throttle boddies so im not daft, my biggest problem was i followed all the guides i could on here and tried to make the simplest loom i could, but my early gti6 loom, vts engine and carb car matched nothing on here, i pinned it all out on a multimeter tho.

 

I wish to keep the car completely standard looking inside and out except for slightly lower and sime small alloys.

 

I want the loom as simple and basic as can be, i like the sound of "welsh pugs" idea but surely conecting the lambda and white ignition live to an ignition live on my car will overload the original wiring? Even if the white wire just switches the relays the lamba draws a decent current? The white wire is pretty thick too so surely draws some current?

 

I realise engines will run with very little ive ran a few on the floor no fuses just a couple of wires but thats no good for a car.

 

Im far from an auto electrician mechanicals,welding and machining is my thing,

 

I am confident everything is correct just need a safe easy way to feed the heated lambda and ignition.

 

Thanks for any advice, ben.

[GTI6 style 1]

Right after some searching and a good check with the multimeter i am much more confident, many thanks for help.

 

I now have the permanent live correctly wired to alternator, earths to gear box, fuel pump out wired through a 15amp inline fuse.

 

Does this sound correct?

 

That leaves me the white wire (relay switch?) and blue/grey lamda wire, is the lamda wire just switching? Getting its feed from elswhere?

 

Basically can i connect both blue/grey lamda wire and white wire to the same ignition live in the car?

 

As far as i can see this is all i need to run it?

 

Thanks ben

[welshpug 1,657]

the ignition live to the relay can come from your original coil feed, the lambda just needs an ignition feed as well, its only an 11w heater element.

[GTI6 style 1]

Thanks welshpug, i wish a hadn't cut and lost the old coil feed now! But that was 2 years ago.

 

I dont suppose you know what colour and or roughly where it runs?

 

Regards the lamda i can just connect it to the biggest ignition live wire in fuse box via an inline fuse?

 

Any idea what size fuse they need?

[welshpug 1,657]

on a gti its a chunky red wire, to the coil through the two brown plugs, I'm not sure where this would be on a carb base model.

 

Lambda can go on a fused switched live indeed, I can't remember how big a fuse, not very!