A3 1.6 Sport 1999 misfire and air leak?

mcnulty471

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Hi Everyone,

I've just bought my 1st ever Audi. I've run it for two months and now it's started to misfire.

Chugging away on 3 cylinders and down on power.

On further investigation I've found that the oil filler cap / breather housing is loose and not forming a proper seal around the base.

I took it to an independent specialist who said it is not a coil pack.

Any ideas?

I'm in Leeds, West Yorkshire, UK
 

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