my tcs light has come on. i've hit the tcs button on & off and nothing happens. sometimes the tcs light turns on when i start my accord, sometimes it doesnt... not sure if this is something serious or not? (my 94 accord use to have the abs light flash after reaching highway speeds but i never bothered with it)

also, my check engine light has popped up. advanced discount ran the code: said the egr valve is clogged. how difficult would this fix be for someone to fix?