During the MOT a high CO level was measured (0.7%) - Hydrocarbons were inside the limit (70 ppm)
What could be the cause of this ? The local garage will look at it on Monday but suspects the catalyst. Could it be a loose lamda sensor or something else (cheaper than a cat )
Thanks for any insights.
Boris.
Your lambda may be messed. Its a bit of a cycle. If the lambda is faulty then it coats up your cat even more. So both may need replacing. What car is it btw? Some Pugs have these problems and need a software upgrade on the ECU. This should be done free of charge by a Pug Dealer.
planet earth! ecu fault was a known on 1.8 petrol models. subject to pug recall. FREE OF CHARGE
Any idea if this is a problem with other models? I have a Jan 1995 405 with xu7 engine. So far emissions have been fine but I've got an MOT on Monday and emissions are not something I can check in advance.
regards
Bob
Thanks - it is a 1995 306 sedan.
Sorry 1.4 petrol 306 (1995).
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