p 1407 trouble code

Question

have a p 1407 code replaced egr valve also have a code saying bank 2 system too lean ?

Answer 1

check for intake leaks, lean means there is too much air in the system.

for the EGR valve code, I would try to clean the EGR and its piping, carbon build up will clog the EGR port 

use a wire brush and a flat screw driver to clean up the carbon build up and clean it with brake cleaner after.