Eco Symbol?

Orbit

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Ive done about 1500 miles now on the S10 and all is great (apart from the mechanically noisy engine compared to a boxer anyway).

The last couple of days the ECO symbol is flashing over every bump in the road. Possible loose connection. Any ideas what connections I should be looking at? Just the ECO symbol nothing else.

Bike is fitted with Power Commander V and o2 Optimiser if this makes any difference.

Any ideas????
 

Squibb

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I understand you have a World Crosser, with an Akrapovic end can & PC5 with O2 optimiser. You don't mention year/mileage/service history, but I'm guessing a Gen2, maybe 2015...ish? Can we assume you are running OE headers, with the O2 optimiser plugged in series with the original lambda O2 sensor & you have no codes evident through the dash diagnostic?

My initial reaction is that it's your throttle hand, twisting the grip ever so slightly as you take a bump in the road. When you are next riding a bumpy straight stretch of road, where you notice ECO flashing a tad, why not engage cruise control, take you hand off the twist grip & see if the ECO symbol stabilises. TBH, provided economy hasn't gone haywire, it's fairly academic in reality - ridden sensibly, even with the richer low end A/F ratio, you should be getting in the region of 55 mpg(UK measures) average on the meter, maybe more.

In theory, it shouldn't be down to any interaction with the PC5 or O2 optimiser, as these are passive devices that simply fool the bike's ECU, although I do recall some reports of wiring problems many years back; some talk of overloaded earth/neg wiring IIRC.
 

Orbit

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Its a UK 2014 model, Gen 2, 28000 miles. Servicing all up to date. Original headers.
Bizarrely I altered the spring setting (Electronic) from two up to one up with luggage and it seems to have stopped.
Thats what made me think it was bump, vibration connected?

I will take it out again later and check.

Bike runs really well apart from that.
 

Eville Rich

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The ECO light shows up when operating at light throttle or power. It just let's you know you aren't putting much demand on the engine. Going over a bump could do two things. First, your throttle may slightly move toward a closed position. This is equivalent to lowering the engine load, triggering the ECO notice. Second,, the bump may give a very short effect of lightening the bike, which could give the ECU the sense that the bike is lighter and requiring less engine load. Like riding downhill may require lighter throttle. Just for a very short time.

I'm not sure why changing suspension settings would have an effect, but stiffening the suspension might prevent as much suspension movement and sensitivity. But I don't know.

I'm going to be riding over some bumps today and see what happens with my ECO light. I don't have an ES version, but maybe I'll see something.

All that said, I would t worry much about the light. I doubt it's some early warning of impending doom.

Eville Rich
2016 S10
 

Sierra1

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. . . . My initial reaction is that it's your throttle hand, twisting the grip ever so slightly as you take a bump in the road. . . .
+1. I don't pay attention to the "eco" on the Tenere or the one on my Jeep. Pretty useless.
 

yen_powell

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I didn't even know there was such a thing! I must now go and re-read my hand book. Had one on my Versys I recall.
 

Orbit

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Well I took it for a pin down the same road but this time in T2 Traction Control setting. Not a hint of flashing. Put in T1 and flashing was back so I can only think lack of traction over the washboard road surface is having an effect.
 

WJBertrand

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I didn't even know there was such a thing! I must now go and re-read my hand book. Had one on my Versys I recall.
If you have a 1st Gen, I’m not sure if they have the little ECO indicator or not? I notice mine turns on whenever I reduce throttle input, even slightly. I suppose it’s there to encourage you to ride in a more economical manner, but it’s impossible to watch it and constantly adjust your throttle, while also watching where you’re going and keeping up with traffic.

It’s pretty useless alright and I’ve grown to completely ignore it. Wish Yamaha would have saved their money on this or applied it elsewhere.


Sent from my iPhone using Tapatalk Pro
 

Sierra1

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Since this thread started, I started watching it closer when I get bored. Still useless. It will actually let you accelerate and not go out. But very slowly. You can increase your speed on cruise, one button push at a time, and it will stay on. Mr. Bertrand is probably right about it trying to inspire "calmer" riding. But way back in the carb days, "they" said it was more fuel efficient to get to your cruising speed quicker rather than slower. No jack rabbit starts, but not snail slow either. I don't know if F.I. works the same.
 

Bmwdumptruck

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Since this thread started, I started watching it closer when I get bored. Still useless. It will actually let you accelerate and not go out. But very slowly. You can increase your speed on cruise, one button push at a time, and it will stay on. Mr. Bertrand is probably right about it trying to inspire "calmer" riding. But way back in the carb days, "they" said it was more fuel efficient to get to your cruising speed quicker rather than slower. No jack rabbit starts, but not snail slow either. I don't know if F.I. works the same.
Very simple for me, I don’t care. I dont ride for economy. Simple as that. I ride purely for fun, so don’t care about how much fuel I use. If and when I cant afford a tankful I’ll stop riding.
Although I will admit to gulping at a tankful of fuel in my Pan on Sunday at £37.:eek:Especially as she only gives me around 40mpg . First time I’d ridden her since buying my Ten.
 

Sierra1

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Very simple for me, I don’t care. . . .
Oh, I agree. I was just seeing when it was actually on/off. I just don't see how it benefits if a person wanted to follow it. I never calculated what the ST13 got mileage wise. It wouldn't have been fair or accurate.
 
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