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Apparently a regular problem with the good ole Olop's...anyone else had bother with the following faults :-

16502 coolant temp sensor g62. signal too high po118 intermittent

and

17927 bank1, camshaft adjustment n205 malfunction p1519 intermittent

Can anyhone shed some further light?

your temp sensor needs replacing and the camshaft positiong sensor by the sounds of it, try clearing the codes and see if they come back up

I thought as much, where is the camshaft sensor located?

I cleared the codes and now they are back.

camshaft is on top of the camcover next to the coilpack iirc

indeed. If you take the engine cover off, its the sensor that goes down into the rocker cover area on the right of the center