Ok i got the trouble codes 8/7 which is evap canister purge valve failure and 3/2 which is egr valve failure....I'm sure the 2 are related but how do i check i got the books both chiltons and haynes and there not helping, i think i saw a post awhile back about these 2 codes but i don't remember the outcome, anyone have any advice on what to check/fix?

 

bump bump bumper

 

I know somebody has had to have had these codes before or am i just a pioneer?