Trip computer MPG avg verses instantaneous

From : skyowl

Q: the new trip computers seem to only provide mpg in avg format. my previous older trip computers could show both avg and instantaneous mpg. i havnt been able to determine any way to get the new on to show instantaneous mpg. does anyone know if this is possible and if so how to configure the trip computer thanks. ....jjc... .

Replies:

From : fmb

the new trip computers seem to only provide mpg in avg format. my previous older trip computers could show both avg and instantaneous mpg. i havnt been able to determine any way to get the new on to show instantaneous mpg. does anyone know if this is possible and if so how to configure the trip computer thanks. ...jjc... its a real pita. you have to sit there and hit reset every time you want the current reading. it isnt made to give real time continuous readings. -- fmb 03 2500 ctd 4wd laramie only one b in fmb .

From : Annonymous

skyjjc*nospam*@prodigy.net writes the new trip computers seem to only provide mpg in avg format. my previous older trip computers could show both avg and instantaneous mpg. i havnt been able to determine any way to get the new on to show instantaneous mpg. does anyone know if this is possible and if so how to configure the trip computer while i dont have one of these on my truck the ones ive seen on cars all seem to operate off of manifold vacuum and in reality provide only anecdotal instantaneous results. you could probably do about as good installing a manifold vacuum guage and placing some calibration tick marks around the dial to simulate the instantaneous mpg. the avg mpg readings displayed by your trip computer are slightly more scientific. .

From : Annonymous

on sun 16 may 2004 173959 -0500 ramman@dodgecity.cc wrote skyjjc*nospam*@prodigy.net writes the new trip computers seem to only provide mpg in avg format. my previous older trip computers could show both avg and instantaneous mpg. i havnt been able to determine any way to get the new on to show instantaneous mpg. does anyone know if this is possible and if so how to configure the trip computer while i dont have one of these on my truck the ones ive seen on cars all seem to operate off of manifold vacuum and in reality provide only anecdotal instantaneous results. you could probably do about as good installing a manifold vacuum guage and placing some calibration tick marks around the dial to simulate the instantaneous mpg. the avg mpg readings displayed by your trip computer are slightly more scientific. no the driver information system on my 88 new yorker calculates actual fuel burned by integrating the injector pulses and reading the odometer/speedometer sensor. it is very accurate. if reset when the tank is filled then left for 4 or 5 tankfuls keeping track of the fuel used to refill the tank for those 4 tankfuls it is generally accurate to within less than 2 gallons or 10 liters in reporting the amount of fuel used. when the engine goes into decel fuel cut the instantaneous fuel consumption goes to 99.9mpg the highest it can register .