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Author Topic: What could cause an Emissions warning to come on? (non-omega)  (Read 1595 times)

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Webby the Bear

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What could cause an Emissions warning to come on? (non-omega)
« on: 11 May 2012, 14:23:30 »
As above.

Mate has this come up. What sort of thing could cause this?

Just out of interest :)

maybe something to do with exhaust manifold or ex. valves?
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JamesV6CDX

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Re: What could cause an Emissions warning to come on? (non-omega)
« Reply #1 on: 11 May 2012, 14:54:49 »
All sorts

Poor lambda operation

Air leak before the cat

Misfire

Incorrect timing

Fuelling issues..

Sensors

Litreally, all sorts.

Need to know the code :y
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tunnie

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Re: What could cause an Emissions warning to come on? (non-omega)
« Reply #2 on: 11 May 2012, 15:01:11 »
Huge range of things, as indicated above. Need to know any symptoms (poor mpg/poor performance ect) & codes  :y
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martin42

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Re: What could cause an Emissions warning to come on? (non-omega)
« Reply #3 on: 11 May 2012, 15:28:53 »
also what car and engine
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henryd

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Re: What could cause an Emissions warning to come on? (non-omega)
« Reply #4 on: 11 May 2012, 16:06:19 »
Even something as simple as a duff brake lamp switch can trigger EML on a lot of modern cars ???
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Webby the Bear

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Re: What could cause an Emissions warning to come on? (non-omega)
« Reply #5 on: 11 May 2012, 16:06:27 »
Quote from: tunnie on 11 May 2012, 15:01:11
Huge range of things, as indicated above. Need to know any symptoms (poor mpg/poor performance ect) & codes  :y

ill get tonight :)
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henryd

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Re: What could cause an Emissions warning to come on? (non-omega)
« Reply #6 on: 11 May 2012, 16:07:44 »
Quote from: Webby the Bear on 11 May 2012, 16:06:27
Quote from: tunnie on 11 May 2012, 15:01:11
Huge range of things, as indicated above. Need to know any symptoms (poor mpg/poor performance ect) & codes  :y

ill get tonight :)

What vehicle Webby ?
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STMO123

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Re: What could cause an Emissions warning to come on? (non-omega)
« Reply #7 on: 11 May 2012, 20:11:43 »
Mine came on with just a duff plug.
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Marks DTM Calib

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Re: What could cause an Emissions warning to come on? (non-omega)
« Reply #8 on: 11 May 2012, 22:08:26 »
Depends on the vehicle, the fuel, the make etc.
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Taxi_Driver

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Re: What could cause an Emissions warning to come on? (non-omega)
« Reply #9 on: 12 May 2012, 07:02:28 »
Hope its not a diesel Fiat  ::)

My Scudo complains of bad emissions when the turbo goes tits up  :o
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Webby the Bear

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Re: What could cause an Emissions warning to come on? (non-omega)
« Reply #10 on: 12 May 2012, 08:38:59 »
ok its a 2004 golf GTTDI. Hes gettin codes read today. no other symptoms, car running well.

ill get results hopefuly today :)
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