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Ep Woody · 02-01-2013, 03:54 AM

I've took a Arduino Nano v3 and added the signals from my ECU (fuel usage) and conditioned VSS signal. Everything seems to work, when I drive a bit it gives me a speed, and a fuelconsumption. The last part seems accurate, but the speed isn't.

While cruising at a constant speed the speed the speed jumps up and down. But what's even more strange, is the first 2-3 stops the speed drops to zero, but after a couple of miles driving the next stop the MPGuino still thinks I'm driving.

Does anyone have a clue what might be wrong?

02-01-2013, 03:54 AM	#1 (permalink)
Ep Woody EcoModding Lurker Join Date: Jan 2013 Location: Netherlands Posts: 2 Thanks: 0 Thanked 1 Time in 1 Post	VSS signal incorrect I've took a Arduino Nano v3 and added the signals from my ECU (fuel usage) and conditioned VSS signal. Everything seems to work, when I drive a bit it gives me a speed, and a fuelconsumption. The last part seems accurate, but the speed isn't. While cruising at a constant speed the speed the speed jumps up and down. But what's even more strange, is the first 2-3 stops the speed drops to zero, but after a couple of miles driving the next stop the MPGuino still thinks I'm driving. Does anyone have a clue what might be wrong?