My wife's Fabia 1.2 has the following fault codes;

16726 P0342 Camshaft Pos.Sensor Circ Low Input

16556 P0172 Fuel Trim,Bank1 System too Rich

My first, and probably cheapest, first 'fix' was just to replace the CPS. I guess the MAF might be a suspect too, but they are not cheap, having replaced one on my old Octy.

Can anyone tell me where the CPS is located on the Fabia 1.2 and if it is as easy to replace as I suspect and hope!?

Thanks in advance for your advice and comments

Left hand end of the cylinder head (From Haynes). So one side or tuther