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 Posted: Wed May 09, 2012 3:53 pm |
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Joined: Sep 22, 2011
Posts: 149
Trade Rating: +10
Location: Manchester
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Evening dudes
Drove home from work before, giving it 'Welly' as my boss calls it out of the car park. He said the thing stank of petrol and was putting out a decent amount of smoke/whatever you wanna call it from the exhaust. He said he instantly thought overfuelling.
I wasnt too sure but i have been getting some pretty un-impressive mpg (I know the 206 isnt that good) But ive been getting about 100 miles to 20 quid ~ 15 liters of fuel with extreme granny driving.
Any ideas guys? Any opinion much appreciated and ill try get a video up of the exhaust when the phone cable has been found 
Mike
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Posted: Wed May 09, 2012 4:47 pm |
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Joined: Feb 07, 2010
Posts: 2505
Trade Rating: +19
Location: West mids
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Have you done any mods to the car that may of changed the way it runs ect?
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Posted: Thu May 10, 2012 4:22 pm |
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Joined: Sep 22, 2011
Posts: 149
Trade Rating: +10
Location: Manchester
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Its had a k&n kit on it, but that's not changed the fuel consumption at all, its been exactly the same as i'm pretty anal about gauging my miles/liters etc haha 
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Posted: Fri May 11, 2012 2:11 am |
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Joined: Aug 01, 2011
Posts: 390
Trade Rating: 0
Location: Bath UK
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What engine is it?
Is the smoke and fuel smell mostly on tickover? This is where the lambda sensor is giving ECU feedback to help it finely tune the fuel/air mixture. Lambda sensor is huge factor for good mpg under steady rpm conditions so I'd check out the readings from it and make sure it's heater is working. Suddenly losing around a 1/3rd of your expected mpg is more often lambda sensor. But don't just change it, check it out, it could simply be a poor connection
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Posted: Fri May 11, 2012 3:35 am |
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Joined: Sep 22, 2011
Posts: 149
Trade Rating: +10
Location: Manchester
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1.4 8v (sorry lol)
And the smell is on revving, chucks out a fairly large amount of smoke (though usually only when cold)
Had the lambda done recently but can check for poor connections, hopefully solve this problem
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Posted: Fri May 11, 2012 4:20 am |
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Joined: Mar 07, 2012
Posts: 512
Trade Rating: 0
Location: 2 Places at once
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When my fuel light came on i put in £30 of petrol and so far i have done about 130 miles and it still has not come back on which i think is pretty good as i dont be driving slowly
Mines a 1.4 lx
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Last edited by gaffa786 on Fri May 11, 2012 5:19 am; edited 1 time in total
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Posted: Fri May 11, 2012 5:18 am |
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Joined: Aug 01, 2011
Posts: 390
Trade Rating: 0
Location: Bath UK
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"the smell is on revving, chucks out a fairly large amount of smoke (though usually only when cold)"
ok that won't be the lambda then
Colour of smoke will be a clue blue = oil, white = steam = water, black = carbon= fuel.
Is it misfiring when throwing out smoke? Are the plugs and gaps good? Look at the plugs and see what the colour and size of deposits tell you
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Posted: Fri May 11, 2012 11:08 am |
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Joined: Sep 22, 2011
Posts: 149
Trade Rating: +10
Location: Manchester
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Doesnt seem to be misfiring, All the plugs & packs etc were sorted out along with the lambda a couple of months ago.
Take a look www.youtube.com/watch?v=yBYiUufWxcY
White = Water?
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Posted: Fri May 11, 2012 11:46 am |
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Joined: Feb 08, 2010
Posts: 10151
Trade Rating: +12
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if you smell the smoke is quite easy to tell if it is petrol or oil
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Posted: Fri May 11, 2012 12:05 pm |
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Joined: Aug 01, 2011
Posts: 390
Trade Rating: 0
Location: Bath UK
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Difficult to tell from 3 secs of video. Is Utube charging these days per minute?
Looks like it's water vapour as it disperses and disappears quickly. If it was a stone cold engine then that might well be condensation in the exhaust.
If there's any sign of mayo in the rocker cover or you're losing coolant then it might be head gasket
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Posted: Fri May 11, 2012 12:13 pm |
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Joined: Feb 07, 2010
Posts: 7093
Trade Rating: +11
Location: Suffolk
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Its normal?
That or your p**sing in the wind.
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