What is the diff between No MIL Light and SES Enabled set to Off?
Another question:
I had headers and cam installed recently. No rear 02s. My friend turned a few things off to keep the SES from coming on. I now have the program for myselft since he now has a 2000 vette and no longer his 98 camaro. I am going through the DTCs and see that he set 170 - Fuel Trim Bank 1 and 173 - Fuel Trim Bank 2 to No Error Reported and SES Enabled set to Off. Why would he do that? Or is this default? I can't reach him to find out but I'm trying to learn and not depend on him for help.
As I'm going throught the DTCs I see a lot of them are set to no error reported and sES Enabled set to Off. I guess a lot of this stuff is by default? Should I worry about 170 and 173?
I still like to know the diff between No MIL Light and SES Enabled set to Off.