New Cat Convertor

[bullzeye]

Recently my car had a horrible smell coming from the exhaust like a sulphur smell. so i been and had a new Cat fitted today. the mechanic said he can still smell fuel coming from the exhaust and it will burn this cat out if i dont sort it

Any ideas what will be causing it? theres no error codes form code reader or anything. This may also explain mt poor mpg as i seem to get less than u lot

[Chris.]

What engine code?

Any fault codes?

[bullzeye]

no mate no fault codes    its AGU

[Chris.]

What MPG are you getting? MAF and lambda primarily control fuelling.

[bullzeye]

normal short journey driving wont usually see over 26mpg, ive owned it nearly 2 years and highest ive seen it go is 35mpg on 100 mile trip on the motorway but was trying hard to get that
wouldnt maf or lambda send a code?

[Chris.]

MAF typically dont if they under or over reading....only method is to log. 

[bullzeye]

ok so i need someone with vagcom in preston area local garages are poop at anything code like