Please can anyone suggest a solution to my problem, the garage cannot get the emissions down to a pass level, the problem i believe is CO2.

I have had a problem with it starting when cold for the last month or so this could be related.

It has a standard Cat on.

any ideas?

Dave

 

sounds like either the cat is knackered or you have a duff o2/Lamda sensor

 

cheers for the reply, Lambda is new, cat is a loaner from the garage. could be the cat i guess.

 

Does anyone know if my 93WRX needs to pass the 0.3% co level or 3.5% ?