Author Topic: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge  (Read 12561 times)

Offline jon321

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Just got this in the mail today hooked it up to the obd2 it found 46/82 gauges , turns out it cant detect my fuel sensor which i do have. Anyway i adjusted everything to the MAP sensor settings and the peak rpm settings since thats what its auto tuned to  ,its calculating the MPGs from the MAP and i was getting readings from 50 mpgs on up  now that thats off the scale my 2003 should get around 34 mpg . Going at a steady 55 mph on the freeway the gauges instant mpg was 58 mpg and the average was  49 and I know thats not accurate , thats better then my sisters hybrid so i dont know whats up. ???

Offline bamzippow

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #1 on: June 26, 2012, 12:38:06 PM »
Did you set it up properly?  Engine size?  Fuel tank size?  ;)

Offline jon321

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #2 on: June 26, 2012, 09:30:36 PM »
yes i did , i set the tank size to 11.0 gal and the engine to 1.6 L . I do not know why its so far off.  I even went through the manual and did the set up for the MAP sensor which is what i have thats doing the calculating for the Ultra gauge. I set up the peak torque level at 106 ft lbs. I heard the MAP sensor is the least accurate form of calculating, so I dont know what s up

Offline bamzippow

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #3 on: June 28, 2012, 07:44:22 AM »
Do you have stock tires/rims on yer car?  If not, did you adjust fer the bigger/smaller size?

Offline UltraGauge Admin

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #4 on: June 28, 2012, 09:33:53 AM »
Perform the fuel calibration procedure.  It is fully described in the manual
Double check that you have set the engine size correctly.

Offline jon321

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #5 on: June 29, 2012, 06:36:11 PM »
Yes I have the stock wheels and tires, when I do the MPG adjustment its says it "cannot adjust". Where is the option for the tire size adjustment on ultra gauge?

Offline jon321

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #6 on: June 29, 2012, 07:15:22 PM »
MAP sensor controlled .Engine is set to 1.6l fuel tank is 11.0, VE Adaptive Volumetric Efficiency has been enabled, Torque setting is 106 ft lbs @3000 rpm, Calibrate Fuel/MPG will not let me adjust it.VE RPM is set at 3000 as for the tires they are stock and do not see anywhere on the gauge where you can adjust them

Thanks
Jon

Offline jon321

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #7 on: July 01, 2012, 06:14:35 PM »
just sent the gauge back for a refund, tired of messing with it .

Offline UltraGauge Admin

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #8 on: July 02, 2012, 08:49:50 AM »
That "Can't adjust" message will be displayed if the current fuel usage is less than 4 liters or 1 gallon.
It is meant to prevent users from improperly adjusting the fuel calibration.  Fuel calibration should be performed over at least 1 tank full.   
The calibration procedure in the manual used to be 4 steps.   About 1% of people had difficulty so we expanded the 4 steps to 10 steps.  The actually calibration process is still the same.

Offline shadescape

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #9 on: July 02, 2012, 04:58:03 PM »
just sent the gauge back for a refund, tired of messing with it .

that's a shame-
I read and studied the manual before the UGEM got to me-
I have liked everything from-
1-hearing about this superb product from knowing users
2-the ease of setup
3-the details of what it does to a driver who knows what the gauge is for

so much so that the rebate isn't important

have a nice day

Offline Intruder1400

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #10 on: July 02, 2012, 07:32:07 PM »
FINALLY, I'm a 1%er.....  does that mean I have to join the republican party?

Offline jon321

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #11 on: July 03, 2012, 06:50:53 PM »
just sent the gauge back for a refund, tired of messing with it .

that's a shame-
I read and studied the manual before the UGEM got to me-
I have liked everything from-
1-hearing about this superb product from knowing users
2-the ease of setup
3-the details of what it does to a driver who knows what the gauge is for

so much so that the rebate isn't important

have a nice day
good for you , you can keep it  .I like you read the manual also before buying the product, it turned out to be more of a pain dialing it in , so i sent it back.

Offline shadescape

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Re: 2003 hyundai accent has very inaccurate MPG readings with Ultragauge
« Reply #12 on: July 11, 2012, 04:16:08 PM »
really is too bad- I can understand your frustration with reading the online manual and applying-

wife mentioned a single mother she works with was wondering about the type of gauge I have-

I went over yesterday- took a look at her vehicle

9 year old asked how my UG worked- so we got on the computer- pulled up Ultra Gauge.com
she saw, thought, made a few coments- "neet"

quote " it's so simple, can we try yours on mom's car"

disconnected- connected it up- but wait- the 9 year old wanted to hook it up

took her 6 min, trying the page and gauge thing, back to the computer

2nd time arround- she had it figured out- with my help she found 2 codes- cleared-
we took it for a drive

calibrated it for mileage only-

mom's quote- if I get one and have troubles will you tell me what I'm doing wrong

nothing wrong with you sending it back- it's probably got way to much information for your application anyway

have a nice day