2008 DTS 1980 CDV. Past 1990 Bro. 1981 SDV diesel
I've been searching for a way to increase mpg in a 1992 Brougham through a PCM "CHIP". Unlike the newer models wher we can use a hand held tuner, these require a chip to be replaced or flashed. Has anybody had an experience, good or bad doing this?? Thanks for your time.