Author Topic: HELP.. starting and ignition probs!!  (Read 865 times)

Offline jayc

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HELP.. starting and ignition probs!!
« on: 30 April 2009, 22:31 »
Hi chaps, i really need help, ive recently fitted an alarm to my car with my mate, i half assed let him do most of it just because i was lazy but i wasnt happy so i re done most of it..

now, the alarm has remote start, which was ok to wire up, but there are 2 wires in the ignition switch that seem to mess things up..

currently i have wired them both to live because the remote start wouldnt work without them both being live, now when i crank by the key it will not spark until i let the key go back to on position.

can someone just explain to me aside from the main power feed, the starter feed, what are the other wires that go into the key switch and what do they actualy do.

i know one was live when ign on but dead when crank, and the other was dead when crank but live when on..

the annoying thing is he knows in his head how to sort it out but he cant be arsed to help now..

its just annoying having to crank it over stop and hope it fires in time, normaly i have to crank it 3 or 4 times to get it to start, its easier to remote start it every time, but i dont want to look like a nob on every occasion.. it was only meant to be a little gimmick.

I was just thinking, shall i just give the coil and ignition module its live that it wants? because im pretty sure the problem is no spark while cranking.

i know this is so sparatic and not very informative, but if anyone can just tell me what they know about these wires it might help me figure out what i need to do. i cant even find them in the haynes. but im proberly not looking hard enought.

its a driver, but i think its all the same on anything with an ignition module. 1991.

Offline jayc

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Re: HELP.. starting and ignition probs!!
« Reply #1 on: 01 May 2009, 01:10 »
ok tonight i wired the gray back up to the back of the the key switch and also the black. the car now sparks when cranking so the car starts easy.

now i just need to sort the remote start.. pain in the ass.. if it was just acc on earth and crank ide be away but theres the black grey and brown/red which confizzle the whole situation  :embarassed:

so still.. if anyone has any info on this, maybe the x over relay or whatever the hell it is, anything would be appriciated, it seems vw have added a little something which prevents hot wiring, so i guess that is what is now causing the remote start not to work.

should i just run an live feed to the coil strait from battery? and bypass whatever weird stuff is in between? i could then disable this through the immobiliser (which i havent wired in yet, so this would be a good time) that way the coil will be live in both on and crank states, and i could wire it back as my mate did so that the remote start works..


Offline rubjonny

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Re: HELP.. starting and ignition probs!!
« Reply #2 on: 05 May 2009, 17:01 »
there are only 2 wires you need:
black to pin 15 - ignition live (to coil)
black/red to pin 50 - starter trigger

x-over is pin X, this is not required to start the car. this feed powers all the accessory circuits liek the heated screen, washers, blower, headlights etc. this feed is off when the car is cranking anyway!

main thing is how you wirte it so that the coil is only live when you trigger the remote start, it also has to stay live till you go and turn the key to power up the X-over circuit and release the steering lock.
Hello my name is John and I'm a dub addict.

Offline jayc

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Re: HELP.. starting and ignition probs!!
« Reply #3 on: 06 May 2009, 08:41 »
hmm well that definatly has helped me a little..

I didnt mean to say that i never had coil when running in remote start.. i did have spark as it would crank and run, but if i got into the car and tried it from the key, it would only spark when in the on position not crank, so it would be a b!tch to start, especially when cold with a manual choke lol..

we tried giving both wires an earth and both wires a live while cranking but nothing happened, we also tried connecting the wires together whilst cranking but still had no spark, it was only when we removed the remote start wires and reconnected the black and grey to the ignition switch that it would spark on crank.

im lost :S

Offline rubjonny

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Re: HELP.. starting and ignition probs!!
« Reply #4 on: 06 May 2009, 08:53 »
you need to connect the remote start in-line with the existing wires, rather than cutting them :)
Hello my name is John and I'm a dub addict.