You need to turn off, the enabled too for the corresponding code. Not all the codes have a enabled or disabled option tho. When I took my car to the GM dealer I bought it at, I didn't have an EGR they didn't say anything lucky I guess. They like my car tho. Especailly because it's top swapped. I had my powrtuner in my back seat at the time cover up by my coat. The guy said "did you reburn your computer" I was like "maybe..." he was like "yeah that's cool." lol.