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Author: Subject: Diagnose this?
Fred W B

posted on 16/4/10 at 04:58 PM Reply With Quote
Diagnose this?

My daily driver has started doing something strange. If the car is running, with the lights on, and I turn the ignition off, the car keeps running, until you turn the lights off, when it then stops.

With the lights off it stops as normal.

It's a 1996 Opel/Vauxhaul GSI - 1800 single cam fuel injected.

I haven't had a look yet, but maybe someone has a clue for me?

Cheers

Fred W B





You can do it quickly. You can do it cheap. You can do it right. – Pick any two.

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mangogrooveworkshop

posted on 16/4/10 at 05:02 PM Reply With Quote
has it got a diode thats leaking power back to the ignition circuit






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dave1888

posted on 16/4/10 at 05:12 PM Reply With Quote
What he said probably.






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scootz

posted on 16/4/10 at 05:17 PM Reply With Quote
What they said... probably.





It's Evolution Baby!

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david duncan

posted on 16/4/10 at 05:29 PM Reply With Quote
engine not swiching off

Have you changed bulbs latlely?
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BenB

posted on 16/4/10 at 05:44 PM Reply With Quote
I'd also reckon a power leak to keep the ignition circuit live.
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t16turbotone

posted on 16/4/10 at 05:55 PM Reply With Quote
Yep.....beleive it or not a faulty light bulb can cause this! along with bad rectifier circuit (alternator) or bad hazard switch
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norfolkluego

posted on 16/4/10 at 06:23 PM Reply With Quote
Arrrrrgh

It's the ash, it's the ash, it's coming


Run

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hillbillyracer

posted on 16/4/10 at 06:58 PM Reply With Quote
My Mk2 Golf would do a similar thing, if you had side lights & an indicator on you could take the keys out & leave it running.
The ignition switch went wrong a while after I noticed it & after a new switch was fitted it stopped it.

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zetec mike

posted on 16/4/10 at 11:12 PM Reply With Quote
Some of the vauxhalls of that era used to have a dim dip relay that caused exactly that. Cant remember which model, poss cavalier but it was in the offside kick panel.
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Fred W B

posted on 17/4/10 at 08:58 AM Reply With Quote
Thanks for all the reponses Guys

quote:

beleive it or not a faulty light bulb



Well done that man - This morning I found it had one filament in a taillight bulb out, changed it, and the problem is gone.

Locostbuilders.co.uk is the ONLY site you need!

Cheers

Fred W B





You can do it quickly. You can do it cheap. You can do it right. – Pick any two.

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