98, have you seen
http://ecomodder.com/forum/showthrea...tml#post497746
Standard MPG gauges are problematic on cars with lean burn because they calculate fuel use based on air flow, but air increases, and fuel reduces, so they would erroneously . The MPGuino actually measures fuel usage, but it is a bit complicated. I have had this open for a while, but I am waiting for my life to actually come together a bit more:
MPGuino trip computer - MPGuino and
http://ecomodder.com/forum/showthrea...ures-8355.html