Is it easy to change..

[pinky]

the o2 sensor before the cat??
I can see it from the engine bay..can I just pull it out??

 

[mattjk]

Youl need a spanner. They are uber tight aswell.

What car is it for? Kinda missed a rather important point here lol

 

[ben_p]

as above

 

[pinky]

Mk2 ph2 1.2 16v clio

 

[mattjk]

You wanna make sure that the manifolds not to rusty. As you can start unbolting it and inadvertidly remove a small piece of the manifold too! Then your boned

Well it happened on an old 106 probably fine on a newish clio :approve:

Trying to think what size it is but I cant remember, sorry... around the 20mm size though

 

[pinky]

So do I just undo 1 bolt and pop it out.??

 

[mattjk]

The lambda sensor will have a hex connection at the end of it just unbolt it. It's gunna be a barsted to remove though the fact the exhaust contracts/expands seems to really hold them in snugly + they rust themselves in sometimes too as above

 

[pinky]

Oh right I see. Thanks dude