There is no manifold cat on a BKY, as I realised a bit late in the discussion. The pre-cat on an original section is the fat bit up by the four-stud connection to the manifold.

 

Forget about it. Anything but a megabucks genuine replacement won't have it.

3 minutes ago, nta16 said:

Sorry I was lost, I thought you got your MoT last week - to be fair it sounds like this MoT tester gave you a more than fair chance.  As you've found lack of error codes and warning lights doesn't always mean there's nothing wrong, your eyes and nose can sometimes be more reliable than app scanners.

 

But all might not be lost.

 

Yea thats true only way to find out is to just buy the exhaust and go from there 

1 minute ago, KenONeill said:

Of what? That can be very diagnostic.

2bh not really sure but there's abit of petrol smell and when I put my foot on the accelerater water comes out like a mug full 

5 minutes ago, Pete_Ex-Wino said:

There is no manifold cat on a BKY, as I realised a bit late in the discussion. The pre-cat on an original section is the fat bit up by the four-stud connection to the manifold.

 

Forget about it. Anything but a megabucks genuine replacement won't have it.

Ok thanks do you think its worth buying the one from eBay? If not have to look for someone who's breaking the same car 

6 minutes ago, Mobear said:

abit of petrol smell and when I put my foot on the accelerater water comes out

Which makes me think it's running rich.

Just now, KenONeill said:

Which makes me think it's running rich.

What will make it run rich and what do I have to check

Show us the emissions test printout; no point in doing anything else before that.

1 minute ago, Pete_Ex-Wino said:

Show us the emissions test printout; no point in doing anything else before that.

Ok I go get it tomorrow i miss placed the one he gave me 

12 hours ago, Mobear said:

What will make it run rich and what do I have to check

Adding more fuel than it actually needs. There are lots of reasons for this, so best wait for the emissions report.

I got someone to come out to check the car and confirmed its a bad catalytic converter  and i found a car breakers who is willing to give me a catalytic converter and said if it passes the mot I pay £50 for the catalytic converter but if it fails he take it back with no charge so got a good deal plus mot guy said he will do the mot for free as well 😀 

Will Update after mot Thanks for everyone's help 

Update good news my car passed its mot and it was the catalytic converter not the 02 sensor. And had to replace the exhaust sleeve as it was 100% rust lol 

Thanks for every one's help 👍👍👍👍