Originally Posted by BMWnation
Hello, I read awhile ago it was stated to remove the DP fix after you passed emission testing.
I currently run Cobb tune. BMS DP fix is set @ 7 o-clock position year round, this way when emission testing comes up I don't have to attached, disconnect the DP fix, it saves me the hassle.
Is this good practice or not?
I know with running the Cobb tune it clears the code, but I need the DP fix for emission testing.
you can leave it on,mine been on for over a year with no issues