Fabia 1.9

hi I have a flashing red oil can and warning buzzer on my fabia. So far the oil pressure switch and oil pump have been changed, Oil and filter have bbeen changed. Earth leads checked and cleaned and oil pressure ok and a diagnostic check carried out! I am at my wits end and no one knows what else to try. I am wondering if it could be a faulty oil pressure switch? Any ideas anyone please .......................................................................................................... If I have put this in the 'wrong section' then sorry I am a newbie and half asleep at the mo........Update It is not a faulty oil pressure switch as tried another one! It has been suggested from a mate of a mate of a mate etc. that it could be related to a power steering problem Sounds strange but could it be?

Edited 1 October, 201015 yr by dojoe