Let's start over......
As is a lot of stuff on the vehicle, EGR, EVAP, 02 sensors with heaters, PCV, etc all helps to have a more emissions friendly vehicle
So then say they were shut off... would the inspection sticker test be able to tell when they hook the scanner up to the computer for diagnostics?
If they would be turned off via a tune, they would just be seen as "not fitted"
some cars come without some emissions devices, you aren't required to have them all, just that if you have them, they are working properly.
alot of diesel guys do EGR delete, and have it turned off via a tune, and it shows as if it never came with EGR in the first place
some cars come without some emissions devices, you aren't required to have them all, just that if you have them, they are working properly.
alot of diesel guys do EGR delete, and have it turned off via a tune, and it shows as if it never came with EGR in the first place