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Model specific boards => Golf mk4 => Topic started by: Ant1981 on 27 March 2011, 22:51

Title: Strange smell
Post by: Ant1981 on 27 March 2011, 22:51

Lately when I start my MK4 and let it sit for about a minute, I get a bad eggy smell. That kind of smell is usually associated with the cat converter, but I've never ever had the smell with this car. Any ideas?

Title: Re: Strange smell
Post by: Wayne on 27 March 2011, 23:26

I would say a cat / mixture problem, so could be a sensor going down or the cat in trouble.

Title: Re: Strange smell
Post by: Ant1981 on 27 March 2011, 23:31

Maybe there is a mixture problem, as the car is running like a complete bag of sh!t. MPG's are down, it's lumpy and the engine light is on. I've had engine lights come on and off since the first day I bought it. This has to be the sh!ttest car I have ever owned. Never again.

Title: Re: Strange smell
Post by: Wayne on 27 March 2011, 23:32

Quote from: Ant1981 on 27 March 2011, 23:31

Maybe there is a mixture problem, as the car is running like a complete bag of sh!t. MPG's are down, it's lumpy and the engine light is on.

Get it scanned for codes then, if the light is on then it will not be running right.

Title: Re: Strange smell
Post by: dellenty69 on 28 March 2011, 09:53

A dead CAT will throw the whole system out, so get it replaced and happy motoring.

Title: Re: Strange smell
Post by: Ant1981 on 28 March 2011, 12:11

What fault codes am I likely to see from a dead cat?

Title: Re: Strange smell
Post by: dellenty69 on 28 March 2011, 12:42

lambda sensor, emission faults etc. 

Title: Re: Strange smell
Post by: Ant1981 on 28 March 2011, 17:36

What are the codes for those though? I should be getting a code reader sometime this week.