Too Much Egr Flow! Es300

[LEX_mob]

my cars running fine and my check engine light had just turned on last week

went to the mechanic and got it checked and it said too much egr flow

i replaced my throttle position, egr valve, vacume modulater all myself

idle control i had it changed by a mechanic

what could be wrong ??

i try to do most of the work on my car myself im not a mechanic but im learning off my car

if theres anyone who could help thanxs