citroen ds3 anti pollution system faulty

[gun12b]

need some good advice, error code p0367= cam position sensor b-bank1 circuit low input.
ive changed the cam sensors both, but the error keeps coming back, after resetting with OBD2 .
any ideas ??? ds3 2010 plate on 32k.
car runs ok no probs, thx in advance this is also on French bred as well.

[stevieturbo]

scope it, test it, check wiring....etc