Hi all!im having an issue with my cam sensor,about 6 months ago got a code up for cam posistion sensor(p0340)was advised I needed a new sensor so I got it fitted,problem solved!now the code has came back and I've bin getting quite a bit of misfiring on high boost.i changed the plugs and they were black,the new ones have helped but still getting the occasional misfire(high boost)as the car is mapped could this have had an effect on the new cam sensor as the code has came back with a warning light aswell,and is the cam posistion sensor bank 1 the one that's behind the plastic cam cover at the side of the block,the one that just has clips to release it??cheers in advance guys!this is doing my head in!!!oh and my fuel cosumtion has went up,getting rubbish mpg,even for a cupra.suspect it's running rich with this sensor issue.