P0346 VOLKSWAGEN - how do i solve the problem when i have changed the sensors

Question

i have changed the timing chain in my galaxy 2.8 v6 24v 2001 (vw engine AYL) when i started it code came up with cam sensor b (again) stripped it down again and reset the vvt on cam b.
rebuilt and started but now it comes up with cam sensor a p0346 out of range..... help before i take a huge hammer to what was my pride and joy.