blowing exhaust

[Malt_Vinegar]

I have a quick question, does a blowing exhaust affect MPG?? Noticed mine is blowing from where the first box manifold looks a bit knackered.

I blocked up the tail pipe on idle and it kept running, could hear the gases escaping from that join.

Noticed my MPG being rather poor at the same time, kinda hoping its related

 

[Malt_Vinegar]

yes, muchos

Sorted, i shall be under the car this weekend then

Cheers chap

 

[Malt_Vinegar]

Leaks at the front of the exhaust can cause poor economy if there is an oxygen(lambda) sensor fitted as the air drawn in will cause a weak mixture to be registered by the ECU which will add more fuel to compensate. If no lambda sensor then small leaks make very little difference, apart from causing lots of popping on the overrun.

Its the very first join at the bottom of the manifold, i actually dont know if my car has Lambda...

I shall google...

 

[Malt_Vinegar]

Blowing exhausts really aggravate me.

I've got 2 choices tomorrow - I can either:

Drop my exhaust, get out the MIG, attempt to lay some bird droppings across the cnetre hanger, and re-fit

OR

Drop my exhaust and hurl it into the nearest bin, get out the MIG, and try and knock up something concocted from standard components, OMP components, and Magnex components.

Option 2 sounds good to me

 

[Malt_Vinegar]

is there no kind of sealant that can be used to sort blowing out?

I have no idea what the actual leak looks like yet. Once i know what its like i will make a judgement as to what is required.

However at the moment there is some doubt if my car actually has a lambda sensor!!