Lambda sensor help. decat

[NickMelson]

Basically i bought a de-cat a few weeks ago went to fit it and the lambda sensor holes are rounded. Was going to tap it but no one has a tap bigger enough. Spoke to a mate and he suggested welding the holes up and taking the sensors off.
Will this work?
Do they have to be plugged in?

Any help would be great.

 

[sideways danny]

Re: Lamber sensor help. decat

Lambda

where did you get a decat without threads for the lambda sensor?

 

[NickMelson]

Re: Lamber sensor help. decat

Lambda

where did you get a decat without threads for the lambda sensor?

They are there just as its used one the previous owner must have stripped them when taking lambda out.

 

[sideways danny]

ah rubbish

get yourself a thread chaser and you might be able to restore the thread to a usable state. If not then you'll need to weld in a new lambda boss

 

[.Kev.]

both holes are ronded?

 

[NickMelson]

both holes are ronded?

yes well stripped.

 

[NickMelson]

Will i be able to weld the holes up and unplug the sensor's then?

 

[sideways danny]

no

 

[Arney]

I believe the sensors need to be in for the engine to run properly. Even without the cat.

 

[NickMelson]

I believe the sensors need to be in for the engine to run properly. Even without the cat.

Ahh okay cheers.

 

[jjones82]

Only the front (pre cat) sensor needs to be their

 

[hipwell]

Is this different on 1.2s Danny? I ran my 182 with a decat that didn't have a lambda hole so I just unplugged the lambda from the car and it ran perfectly fine

Edit. Sorry didn't realise you said both holes are stripped, so I assume that on a 1.2 both lambada are on the cat pipe.

 

[NickMelson]

Yeah there's a hole before the cat then one after the cat.
Will it make a difference on a 1.2?

 

[hipwell]

Well on mine the front lambda Is on the manifold and the other on the cat. The one in the cat does naff all and the car runs without it.

However if your saying both holes for yours are nackered and both in the cat then you at least need the front one sorted and plugged in