Milltek Exhaust

Makaveli160

Paid Member
Recently noticed my car seems to smell quite strongly of fuel out the exhaust. Not only first thing in the morning anymore.

Seems to be a lot of carbon build up on the tailpipes aswell, much more than it used to, almost like oil but it isnt oil.

Any ideas? could it be a problem with the CAT, seems to be running abit lumpy when started also, almost as though it wants to stall but doesnt? whereas previously i started the car and it would rev normally and idle abit high being a cold start.

Now it seems to start then sound like its struggling to hold its idle.

The exhaust was welded around the back box joins as the welds very slightly gave way a while ago, maybe the welds have gone again making it idle lumpy?

Just seems strange to smell as much, have much more black sot in the exhaust and idle lumpy first thing.

Thanks
 
My MPG is also down...used to get an average of around 27mpg most of the time...seems to have dropped to 22-24mpg recently