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Gman

Ignition problems

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I am having some ignition problems with my car at the mo. I think it is a short circuit somewhere in the steering col wires. Would any one happen to know the pin outs for the three plugs in the steering col. The main one being the one to the ignition barrel.

 

it is a 1990 1.8 16v.

 

Any help would be great, as I am flying blind ( and car less ) at the mo.

 

Cheers

 

G

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Yeah that is what i was thinking.

 

What i was planning on doing was rigging up a hot wire. to see if that was the cause of the problems.

 

What i was looking for is the which circuts i need to make to get ignition, and which circuit i need to make to get the starter to turn over.

 

Thansk

 

G

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Ok am not sure about this.

 

I have a photo of the ignition plug. Does anyone know what each wire is for.

 

I know the red one is +12V but i have no idea what he others are.

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Fat red/black wire is starter motor....

red wire is battery feed

Grey wire is dash lighting

black/yellow is fusebox feed

black is earth

....if i remember right

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Thanks a ton.

 

you have been a great help, It is just unfortunate that my car still wont start. Back to fault finding.

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Does the engine turn over at all?

Do you just get a clicking noise when you turn the key?

Or does it just not do anything?

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Just get a clicking noise from the solinoid.

 

the strange thing is that every so oftan it will turn over and start. it is really anoying me now.

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It sounds more like the actual starter motor is at fault. If the solenoid is clicking then it's probably not sticky. You could either try another starter motor or strip the one you have and check/refurb the brushes, commutator and the solenoid contacts that switch the starter current.

 

As Valerian suggests, belting the starter motor with something heavy and blunt is a good test.

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Can i do that? is it not a sealed unit.

 

The strange thing is that if i click it oftan enough it eventualy starts. I spent 10 min turning the key today to get it to fire up again.

 

Any ideas where i could get it refurbed in the MK area.

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That sounds like a classic case of 'dirty contacts' to me.

 

As far as I know there's no reason that the starter and solenoid can't be stripped. I may be wrong though. I refurb'ed an 8v Golf GTI starter a few years ago and it's the same pre-engaged design that the Corrado uses I believe. However, if you're in any doubt about the operation of DC motors then it's probably best left to a specialist.

 

I have no idea about the MK area. If you were in Norwich that'd be another matter :)

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Try looking in the Suppliers Forum at Recommended garages - there's Stealth Racing the otherside of Northampton, but if you have a look in the above there's probably someone closer to you...Good luck!

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Another thing to check is the state of the engine-chasis earth. A poor earth connection could easily cause problems with high-current systems, such as the starter motor. For example, use a multimeter to measure the resistance between the -ve battery terminal and the gearbox casing. It should be

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Yeah that was my first port of call.

I unbolted all the earths and cleaned them up nicely and then re-bolted them to the Gbox.

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If you want to make sure it's the starter motor at fault and not the wiring to it....do the following:-

 

Find yourself a long screwdriver with either a wooden or a rubber insulated handle.

 

On the starter motor you will see two connectors....one is a bolt on cable that runs to the battery....the other is a blade connector that runs to your ignition switch.

 

Remove the blade connected wire.

Now short across the blade terminal and the bolt on battery terminal on the starter motor.

 

There'll be lots of sparks but the motor should turn over....if it doesn't then the fault lays with the starter motor.

 

(turn your ignition on if you want the car to start while doing this)

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