406oc.co.uk

Ok fault on 406 reads;
Intermittent fault, engine ecu.fuel low pressure pump supply.Coherence on switching off engine.

It might be some sort of Franglais but it makes no sense can someone decipher it

Just guessing, but your car probably 'thinks' the pump didn't get switched off when the ignition was turned off.

The 'intermittent' bit means it may only have happened once. - Try clearing it & see if it comes back.

If it doesn't, shrug your shoulders & murmur, 'C'est la vie"