Drive by Wire Throttle Explained by Jason Cammisa

[theKurt]

In my Youtube exploration, I came across this video explaining Drive By Wire. I thought I understood it, but this gave me far more information and explains some of the unexpected readings I'm getting on ODB2 gauges. For example: in my 6M, same instant MPG in 5th vs 4th at a constant speed on flat ground. I always thought using a higher gear would decrease fuel usage, but it seems the ECU manages that in a different way now.

Jason Cammisa - Know It All

Plus, Jason has some generally great videos anyways. If you're looking for some interesting stuff, check out the whole "Know It all" series and the impressive "Icons" series as well. Just watched a video on Ferdinand Piech and was amazed at what the guy achieved.

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[Duck Amuck]

Interesting. Sometimes I bump my transmission over to manual shift mode and wonder why it's chosen that gear, thinking surely a higher gear would be more efficient.

Check out his video about the Porsche 924/944 too, it's great!

 

[theKurt]

That was an excellent video! I’ve been binge watching his stuff for a few days now and it’s been great.

 

[Goriders]

Crazy stuff. Thanks for posting.

 

[chasea1989]

That was pretty informative. Thanks for posting

 

[BoboForShort]

Didn't watch the video but an easy way to understand it is RPM and load are both important to milage. In a lower gear you might be at a higher RPM but the engine is under less load and requires less fuel to maintain that RPM. Think shifting to a lower gear when pedaling a bike, you'll pedal faster to go the same speed but it's easier to pedal.

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