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Real Time MPG

Posted: Fri Sep 17, 2010 1:04 pm
by WheatBread
Hey all, is there a way I can view real time MPG with my dash display, as opposed to the not much help average MPG that I can only figure out how to display right now? Oh yeah, it's an 05

Posted: Fri Sep 17, 2010 5:07 pm
by CPLTECH
Mine only gives average, too. At any time you can reset MPG and the (b) part of the trip odometer to give info on shorter distances. By the way, it updates its calculations every 20(???) seconds. Years ago I added a kit to a 98 Tahoe that would give instantaneous MPG, among other things, but had to be wired up under the hood. I miss it.

So far I have seen two products that just plug into the OBDII port with a little vehicle specific info to program into it. Both give lots of readouts that the on-board computer has available. Both units are found in use by the guys at http://www.cleanmpg.com/ :
UltraGauge for about $60 http://www.ultra-gauge.com/ultragauge/index.htm
ScanGauge for about $160 http://www.scangauge.com/autozone.shtml

Posted: Fri Sep 17, 2010 8:57 pm
by WheatBread
Thanks, so can you explain how to reset the B trip MPG?

Posted: Sat Sep 18, 2010 12:51 am
by Taavi
WheatBread wrote:Thanks, so can you explain how to reset the B trip MPG?
Same button, that you use for changing a-trip => b-trip => mpg (or L/100km) => average speed => driving time => a-trip =>...., just hold it for a few seconds

Posted: Sat Sep 18, 2010 3:45 am
by WheatBread
will that not reset my main overall average MPG??

Posted: Sun Sep 19, 2010 2:54 pm
by SilverGhost
WheatBread wrote:will that not reset my main overall average MPG??
Of course it will, because the PF only has a single "average" MPG display.