100+ hypermiling / ecodriving tips & tactics

[jtgh]

keep in mind, that most obd2 tools do NOT know which mode the ECU is running in.
for any reporting of MPG or fuel used absolute.

Cold start.
warmup
hot run
accel. (fast gas foot) switches modes. !)
wot
unflood.
deceleration (in gear or out of gear)

it just dumbly assumes, stocheometric AFR. this is far from accurate.

IMHO

[McTimson]

The MPGuino is tapped right into the fuel injectors, and shows 0.00 gallons/hour of fuel being used under DFCO. OBD2 tools use sensors, but the MPGuino reports right from the source, and the source says no fuel is being used.

[jtgh]

have both , and DSO and 3 diff full logging, OBD2 Scan tools. ( 96 era to present)

the MPGuino, is the cheapest path to the answers.

the Sensor way , is not any good for the reasons stated.
it is a calculated value and not a sensed value.
A derived result that only comes close when cruising. (and then only after a careful calibration of the tool)

the MAF in no way senses gas flow.

[milesgallon.com]

Maybe I'm making a fool of myself for asking, but can you explain what an MPGuino is? I've never heard of it.

[Christ]

It's a simple little tool based that works like a ScanGauge for those among us who can't use a ScanGauge. It's also cheaper, in that it comes as a preassembly, or a DIY kit.

The only foolish question is the one that goes unasked. The only way you can truly be foolish is to think yourself a fool for the desire to learn.

[milesgallon.com]

Is there a place you can buy the MPGuino online? And of course I'm wondering, if it's a do it yourself kit... is it difficult to install? Anyone here that have done it?