Peugeot Repair Questions? Ask a Mechanic for Answers ASAP
What initial fault codes did they get prior to the fault or clearing?
Where was the cat converter purchased?
Sometimes with aftermarket,cheap cat converter those that are not type approved can sometimes cause issues like that on these cars.seen it many times. cat converters are quite a common replacement on 206's..and sometimes its best to fit a proper type approved one...albiet a little more expensive..you really need to know exactly what codes are being flagged up as and when the fault light comes up..as it could be seperate issue all together that maybe damaging the cat converter.for example maybe a fuel trim issue,overfuelling or even as far an exhaust leak before cat and pre cat oxygen sensor..seen that a few times..