i have 2005 sti
mods: 3"tb, ecutek, 740cc injector, fuel rail, bov, kn short intake

the code p0457: evap control
system leak
detected fuel
cap loose/off

the dealer changed some parts , check engine is still on, they are saying my mods is causing the cel?

it doesn't make sence to me, could that be true if not what is causing the cel?

thanks for not helping

well im assuming that you have checked for leaks and all so its hard to tell what it could be. But u can probably count on it being on of your fuel mods. Maybe o-rings on the injectors. Sorry i couldnt help more