Hi have just had the head skimmed and pressure tested, but the engine management light staying on, have checked and saying it's the camshaft exhaust sensor. Have put two new sensors on but Still the light on. Have ran out of ideas and doing my head in, please help.

Hi...welcome to the forums

My first thoughts are the cams have not gone back correctly regarding crank/cam timing.
Alternatively, have two plugs within the same area gone back on the correct sensor (e.g. inlet/exhaust?)