castel builders

Hey guys. My motor swap went well. I had 4.6 L winsor amd swaped it out for 5.4L winsor. But now im getting coads for.lean banks 1 and 2 and then im also getting a code for evap system. Ive bin trying to find some answers to the evap but came up with nothing. The lean banks are becuase im still running the 4.6 ecu with the 5.4 but no k e here in town can reprogram my ecu.

Please help me.out guys.
Winnipeg. Manitoba. Canada