GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: Ben Lessani on 11 April 2008, 19:18
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I had a search and this fella (http://www.golfgtiforum.co.uk/index.php?topic=51845.0) here had the exact same issues...It doesn't happen all the time, it only ever happened once, then recently it happens about once every 1.5hrs of driving. The engine just drops all power for about 1s then powers up fine, otherwise the car pulls like a train through the whole rev band.
Only trouble is, how can I tell if the dizzy rotor arm is worn (I'm not sure what to look out for)?
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check for carbon it should be brass but if its black give it a clean the cap will be the same
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Check your earths - I had this in my Syncro a while back - it was just a dodgy earth.
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Stupid car did it again on my way back from the gym.
My earth's are pretty mint - just renewed them with 2awg cable, but I will pull them off and give them a clean again. Will clean the rotor arm up too and see how it goes.
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my car is doing the same sort of thing mate, iv been told its water or condensation getting into the dizzy cap
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Well, I cleaned up the dizzy cap with some WD40 - the contacts seemed pretty clean anyway. I looked at the earth's on the rocker cover, and it was pretty crappy - all oilly and a little loose. So I went nuts with the dremel and polished everything back to a nice shine, re-attached it all and tightened it and smothered it in grease. Double checked the battery -ve and +ve feeds and they're still mint...
...I drove for about 1 day without noticing it, then a tiny blip of no power again. :undecided:
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There's a group of earths above the fuseboard under the dashboard - make sure they're all in good nick - stuff like the fuel pump relay earths up there.
And use Servisol on your electrical contacts, not WD-40 (useless bloody rubbish).
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I will have a lookie today. Servisol - isn't that butane? I was using the WD40 as a dispersant incase it was water in the dizzy.
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Goddamn it! Driving home and now the mis-fire is developing into a flipping backfire, engine cuts out, revs drop to 0 on the dial, nothing for 1-2s then BANG, engine fires back up again, why is this suddenly happening. The only thing I have changed recently is the type of oil I'm using, with my leaky valve seals and rings - it could maybe be that its burning funny - I dunno, very confused.
Edit: I'm starting to think this might tie in with the car starting difficulties. Every so often, I turn the IGN and the starter clicks once and does nothing, a few more times and the car will fire up as normal. Seems pretty random, one of my immobiliser's is spliced into the starter circuit, perhaps that could be the cause? I will have to have a once over of the fusebox grounds as advised and see what it turns up.
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just checkin, when was your last service? Have you checked all you leads are plugged in correctly. It sound like a spark ignition problem to me, Could be the coil arcin across to the neg, happened to me due to a crappy connector. Insulated it went away.
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one of my immobiliser's is spliced into the starter circuit
Get them right out of it, especially if they're elderly ones.
The amount of utter crap associated with alarms that I've pulled out of dashboards recently has been amazing.
Have you replaced that earth strap off the back of the head?
If not, do it - they can look fine, but not conduct.
Go back over the earth connections and check the cables and the fixings for tightness - everything you've described stinks to high heaven of a duff earth somewhere.
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Nah, it's not an older immobiliser - its off my current alarm. I have a few just because of how easy this car is to hotwire and steal.
The battery to chassis, chassis to g/box grounds are spot on (just replaced). I cleaned up the coil to head ground, but I can always stick a new cable on in its place for testing.
What I'll do is just make up a quick circuit that plugs into my immob. relay, so if that stops receiving power when the IGN is +ve it will buzz - only a transistor required so should be easy.
I will check all the dash wiring soon anyway (when the weather is better) and check everything inside, need to replace a few dash bulbs and the handbrake bulb anyway.
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Did you check the earths under the dash, above the fuseboard?
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Hey diamond, would you mind explaining that? I have a similar problem to the OP. I checked my engines earths and there's nothing over 2 ohms which seems fine to me. What you said sounds pretty plausible though!
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If it happens again, see what your dash lights are doing. Do they come on as if the engine is not running, or all stay out? I would firstly say that you may have a problem with your ignition leads. Are they old? If so, one may be breaking down, especially if it has been raining. Secondly, if you also have a starting problem as well, then the ignition switch or wiring could be starting to go bad, and also cause the power loss if it goes open circuit for a moment or two. Take the cowls off the steering column surround and have a good sniff and see if you can smell any signs of burning. Even if there is no smell, have a good look at the cables and see if one is loose or if a soldered joint has gone dry. :smiley: