I have a peugeot 406 1999 and the engine managment light comes on after driving about 2 miles, I understand that it is telling me there is a problem with either the cat converter on the lambda senser, but how do you tell which one ,without the costly method of trail and error,
i would appreicate any advise
cheers
The engine management light usually means that there is a message waiting to be read. The message may give you more information. You need to find a garage (or Pug dealer) with the kit to download the message.
And there's a lot more things that put the light on than cat and Lambda.
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