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Unread 07-21-2016, 02:07 PM   #1
Not Yet Wild
Yamaha
 
Join Date: Sep 2014
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Default G19 48V Throttle Sensor Reading

During troubleshooting i took OHM reading of my throttle sensor and only got 3.79K (throttle any position) as opposed to the 5k reading called for in the spec. I was able to correct the issue due to loose wire elsewhere, but was curious if the sensor needs replacing. What impact (if any) will lower reading have on operations?
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Unread 07-22-2016, 06:42 PM   #2
Not Yet Wild
Yamaha
 
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Default Re: G19 48V Throttle Sensor Reading

Does my question make sense? I thought this would be a lay-up for most but can't get anyone to post any info. The cart runs, so it can definitely run on less than 5K, but I guess this limits speed? I have never tested for MPH.
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Unread 07-23-2016, 12:16 PM   #3
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Default Re: G19 48V Throttle Sensor Reading

Did you do the test readings with the "TPS" still mounted in it's box?
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Unread 07-24-2016, 10:00 AM   #4
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Default Re: G19 48V Throttle Sensor Reading

yes. I tested at connector plug/end.
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Unread 07-24-2016, 10:31 AM   #5
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Default Re: G19 48V Throttle Sensor Reading

Might try taking off the box inspection plate and see if the accelerator throw is at full engagement. The adjustment is at the accelerator pedal.
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Unread 07-25-2016, 07:24 AM   #6
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Default Re: G19 48V Throttle Sensor Reading

I will give it a look although for on particular reading it is supposed to test 5K in any position - I think. So wouldn't the adjustment you reference be for the variable reading?

I just put in a Alltrax XCT (300A) and performance is very good with old, stock motor as i get 21-22 MPH on flat ground and i start braking at 25-26 MPH downhill as I am getting old and don't want to meet my maker on a golf cart. I bought a TPS thinking i should replace but they aren't cheap and i don't want to install just for the heck of it.

Thanks for responding!
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Unread 07-25-2016, 09:08 AM   #7
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Default Re: G19 48V Throttle Sensor Reading

With the Alltrax PC application you can see the throttle response in percent. If you are getting the full range of 0 to 100 percent, you are good. I would not worry about pot resistance.
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Unread 07-26-2016, 12:01 PM   #8
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Default Re: G19 48V Throttle Sensor Reading

Thanks! i am getting 100% Throttle in the Alltrax monitor. I guess i am good at this point.
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Unread 07-26-2016, 03:15 PM   #9
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Default Re: G19 48V Throttle Sensor Reading

Actually, while going through Alltrax program for first time i realized that RPM was set to 6000 and there is a warning to not exceed motor specs which is 3650 RPM - so that explains part of the speed gains. Evidently the factory setting was too high and now my top end speed gains have been reduced. I guess that's better than "smoking" the motor due to incorrect settings. Anyway, throttle now reads 99% which i assume is still OK with TPS that is installed. Thanks again for insight.
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