The Mysterious ECO Light - Kia Forum
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#1 (permalink) Old 03-12-2010, 02:41 PM
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Default The Mysterious ECO Light

All -

Here's one to scratch your heads about.... I usually drive with my 2.4L auto SX sedan's info display set to instantaneous MPG (it's a hoot to see the MPG go up and down as you drive). HOWEVER... when the display is set to that, I rarely, and I mean RARELY ever see the green ECO (economy) light come on. Now that the weather has moderated some, I am noticing the instantaneous MPG easily in the 40's, and sometimes kissing the magic 50 MPG! BUT.... even then, the stupid ECO light doesn't turn on.

Today, it was kind of cool outside, so I flipped through the nine info displays to the engine temp. All of a sudden... the green ECO light TURNS ON! I thought... wow.. there it finally is.... and it stays on for most of the style of driving I do. Curiousity got the best of me, so I punched the info display button through to Instantaneous MPG. And... >poof< the damn ECO light shuts OFF. Pop the info display to ANY other setting, and the ECO light re-appears for most of my driving.

Has anyone ELSE with the SX noticed this? I don't recall reading in the owner's manual that the ECO light is only for the 8 other setting, and would turn off when set to the Instantaneous MPG. Another KIA programming goof-up?

Comments? Observations?
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#2 (permalink) Old 03-12-2010, 03:00 PM
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Maybe the info that controls the mpg display and the eco light comes from the same sensor and that is why only one and not the other can be displayed at the one time. I suppose they think if you are watching the mpg display you don't need to see the eco light because you already know what type of economy you are getting.

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#3 (permalink) Old 03-15-2010, 08:19 AM
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Same here - I get the eco light when I am viewing the temp setting. Also my eco light goes on and off 'regardless' of my driving habits. I can be at a red light- punch the gas pedal and hit the brake and the silly eco light will go on tell me that I just did something good. Lol...
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#4 (permalink) Old 03-15-2010, 08:33 AM
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ECO light doesn't come on in certain modes (ie, when you're displaying instant fuel consumption, or if you're in step-tronic (or whatever it's called) mode)
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#5 (permalink) Old 03-29-2010, 05:05 PM
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ECO light huh? Not-a-Canadian thing, or strictly an SX thing? I would love to see the current fuel consumption, or the engine temperature for that matter...

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#6 (permalink) Old 04-06-2010, 04:29 PM
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From the manual:

Quote:
ECO driving system
This system is designed to encourage eco-driving by providing real-time feedback to the driver.The ECO indicator light assists you to drive in the most economical way. The green indicator comes on when you drive with high fuel efficiency. The fuel efficiency depends on driver's driving habit and road condition.

The system stops operation when the transaxle is in the P,R,N position or sports mode, or instantaneous fuel consumption mode is selected.

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#7 (permalink) Old 04-10-2010, 10:37 PM
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buruko -

Thanks for taking the time to show me what I already forgot that I read! I admit, it was only a few days after buying my new Forte Corsa Blue SX, but being almost 51, I guess I can be expected to forget a few things.....

Again, thank you!
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#8 (permalink) Old 04-11-2010, 09:18 PM
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It wont go on over 75mph either.
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#9 (permalink) Old 06-16-2010, 03:51 PM
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Quote:
Originally Posted by pulsar86 View Post
Maybe the info that controls the mpg display and the eco light comes from the same sensor and that is why only one and not the other can be displayed at the one time. I suppose they think if you are watching the mpg display you don't need to see the eco light because you already know what type of economy you are getting.
Is that an OBDII thing? I have a ScanGauge in my Forte and I know the manual says if you try to display the same measurement in two display positions only the first one will get a value.

I've noticed that the ECO light NEVER goes on above 75 MPH. I prefer to use my ScanGauge's MPG calculation, but I keep the ECO light on as well. I notice that the ECO light turns off above 75 no matter what. In fact, if I coast downhill at 76, the light is off, even though my ScanGauge reads above 100 MPG. If I BRAKE downhill to get to 74, the ECO light suddenly goes on!

Other than that I really haven't been able to make a clear correlation between the ECO light and my ScanGauge's readings. Throttle position, RPM, speed (other than the 75 thing) don't seem to make a direct difference.

Also, I've noticed that my SG reads a lower speed than my speedometer. I suppose it could just be off by accident, but it has occurred to me that it could be a deliberate attempt to trick people into driving slightly slower. Maybe that's how they get their MPG numbers

Edit: Hmm... maybe they know that if you could see the disconnect between the ECO light and MPG you'd find out the dirty truth of the ECO light, so they disable it while you're looking at MPGs.

Last edited by romulusnr; 06-16-2010 at 03:54 PM.
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