Cat to manifold fitting kit

[benn j]

I had a cat to manifold fitting kit fitted at a local garage along with a new exhaust mount, new clamp (cat to centre section) and my mot
i got the car back yesterday and now my engine management light keeps coming on the code reads p0141 O2 sensor heater circuit (bank 1 sensor 2) Which is obviously one of the lambda sensors
i have cleared the code but it keeps coming back on after driving for a while

now is this likely to be something the garage has done or just coincidence that the lambda has gone the day it came out of the garage ?

​Advice would be much appreciated

 

[montana]

quite possibly as they could have left the cat hanging on the sensor wire whilst they were changing the Manifold-Cat kit. Will be hard to prove though as the fact it was disturbed alone could have caused the problem.

 

[benn j]

Do you think it could just be the joint still blowing? An letting oxygen into the system?

 

[montana]

Get your head under the car and place your hand around the join , this will help diagnose.

However I have a blowing noise despite resealing all 3 of the joins from the cat back which are still airtight - no lights though.

As a starting point check all joins are airtight and also check the state of the sensor wire going into the cat

 

[Tony Hunter]

If it wasn't a genuine Renault kit, it's more than likely leaking. All non gen kits are pants.

 

[benn j]

Thanks for your replays

an tony do you think it would chuck the light on if it was leaking?

 

[Tony Hunter]

It can do.