Something is wrong with my Instant MPG

[BUC NASTY]

I have been killing alot of gas very easily just by going place not even far away such as to buy some food, and i drive alot slower now. What is wrong with my Instant MPG? Why does it read on the DIC instant 0 MPG? Thanks

[Knightslugger]

what's wrong with your instant MPG you ask? It's instant...

what's your ACTUAL AVERAGE MPG?

[dtown]

like what was said above...the instant is what you're getting at that instant while you are moving, check it while you're going dow the road.

[ssilicon]

I don't think the DIC has instant MPG, only average. At least mine is that way. My Aeroforce Interceptor can show it though.

[dtown]

I don't think the DIC has instant MPG, only average. At least mine is that way. My Aeroforce Interceptor can show it though.

hhhmmm, maybe the newer TB's don't:undecided:confused:

[Fishhunter911]

The 02 model year has both instant and average.

[BUC NASTY]

i have instant and average and the instant says 0? is there something wrong with my TB?

[dtown]

i have instant and average and the instant says 0? is there something wrong with my TB?

we understand that, I guess the confusion is; are you talking about it constantly showing 0 whether or not you are moving or what?

It's not going to show anything but 0 when you're not moving but will show some calculation when you're moving.

[BUC NASTY]

pretty much when I am moving i dont know why but my averge mpg seems fine

[Fishhunter911]

could be ur gauge cluster going bad.

[bsl2ck]

Does anyone on the forum know the period over which the average mpg indicator average is calculated? I know that on my 15, or so, mile trip to work, it can change almost 1mpg or more if I sit in traffic for a long time (those instant mpg 0's add up). So the average can change dramatically over the course of a tankful of gas. This morning I found that the average on the dash was over 1mpg higher that the calculated mpg based on miles travelled and gallons used (determined at pump by gallons to fill and miles travelled since last fill-up). Is this what you folks see as well?

Thanks

[rbarrios]

its determined since it was last reset.
so if its never been reset- it will average over all those tankfuls...
if it was reset at last fillup- its based on that amount of gas used.

on the Impala- which has the DIC (my TB does not)...
when I refuel the tank, and reset....... I leave the DIC on the screen that shows AVG MPG....
as you leave the gas station- this number starts going up.... few blocks later- lets say im at 7.8, 7.9, 8.0 mpg and I come to a stop at a red light, and I sit there idleing, this number starts to go.. 8.0,7.9.7.9,7.7 as long as I sit there... start moving at green light and that # starts going back up...

[BUC NASTY]

the weird part is when I am driving at constant speed lets say 50 mph, the instant MPG says 14....33....22....8...33...24... and so on. This this normal??

[ZRjohn]

That is normal, it depends on the grade of the road and the load on the engine. If you are going up hill it will be lower, and downhill will be higher. Also wind can effect this.

JS