I have been having this check engine light for a weeks so yesterday after pulling some parts for the Q, I stop by my boy house to check it out (ODB) and codes P0400-Egr valve, P0420-Cat bank 1 , P0440-evap (Guess gas cap), P1448-canister

For code P0440 I changed gas caps havent had chance to see if that code was cleared

For code P1448 3 months ago when I purchased car the radiator was leaking antifreeze over canister below, changed radiator and cleaned canister harness wires (electrical parts cleaner)

Any help would be appreciated, I like driving and working on this car some parts can be tricky but its worth it too me

Any response ??, well anyways did some looking found my EGR leak small hose replaced, do you think I should go ahead any replace the egr solenoid (held by one bolt) I have a extra orginal laying around ?