Fiat punto emissions - MOT failure!!

[gigglybot]

Hi

I currently have a 2000 Fiat punto 1.2 8v.

I have just had an mot test done and it has failed on the fast idle co reading, this is the only reason it has failed all other emissions were ok.

To pass the figure must be under 30 co mine is currently 51!!

The figure drops to within the limit if the revs are raised beyond the test limit of 3000.

I thought a replacement lambda sensor or coil pack would do the trick, any ideas??

All advise greatfully recieved.

[jjatlas]

i'm not an expert but how about giving the car a real opening up session on a quiet road/ motorway etc. i've had problems with the lambda sensor before and this has tended to clear it out and get the vehicle back to normal emmisions.. do you know the garage and have they tried to quote you for the replacement ??

i'm might be barking up the wrong tree here but someone else here may be able to give you a more technical way of sorting it.