Cam shaft sensors seem to be the cause of lots of headaches!!
Had loads of instances of this, and not always tthe sensor. Had a Focus TDdi in recently and after diagnosis with the diagnosis machine... camshaft sensor fault,symptoms-poor starting,cutting out at idle... machine was wrong, it was the dual mass flywheel....moving so much the timing was all over the place...replaced clutch with an old fashioned solid flywheel and clutch kit at half the cost of the correct DMF and kit. Car running perfectly well now, and the manufacturer who is the only one making the old fashioned retrogade solid flywheel can't keep up with demand! older IS better!
Yeah, its getting worse week by week. Electronic brake piston rectraction, where you can't change brake pads without a dedicated computer. Tracking adjustment by laptop (this is true) -Dialogy stuff,the tank of fluid to be injected into exhausts,electronic handbrakes. Service lights where you have to rub your tummy and pat your head,whilst pressing button 'A' for ten secs turn the ingnition on and hum "oh Joahnna" all at once... even Merc with their synthetic Pee...
I need to be able to work with mechanics,hydraulics,electrics,electronics,computers,refrigeration,bodywork,paintwork and upholstery,but we are still seen as scum,oily rags,fitters,cowboys,and we are paid accordingly.
In my opinion cars are LESS reliable than they have been for many years,getting more and more complex,and made from cheaper and cheaper materials.There are more models in each manufacturers range so parts supply will become more of a problem,and the government are paying people to run out and buy more of the things.
Everyone go and buy a W124 NOW.. We're all doomed. DOOMED I tells ya!