Hi, just wondering if anyone can help.

I have a 406 glx 2.0 petrol estate 2001 (Y plate).

Last night when driving home from work the engine management light
came on and i got a message saying 'antipollution fault'.

The car seems to still be running fine, the miles per gallon don't
seem to have changed and I haven't noticed any other changes or
problems.

I wondered whether it was just a one off and would go away if left
overnight but having left the car and trying it again this afternoon
but I still get the message and the light on the dash.

If anyone can shed any light on this problem I would be most grateful.

Thanks in advance.

Guy