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Old 07-18-2016, 10:31 AM   #1
mazdawg(Mikey)
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Default Studdering issues at low throttle

So when I go under full acceleration the cart runs just fine but when I drive around with the pedal barely pressed down or stop and go it wants to studder. I've noticed that the solenoid is super hot as well. I'm runnin 48v with a dcx400 controller, 1/0 wiring and a plum quick motor. Any ideas guys?
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Old 07-18-2016, 10:35 AM   #2
teecro
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Default Re: Studdering issues at low throttle

Quote:
Originally Posted by mazdawg(Mikey) View Post
So when I go under full acceleration the cart runs just fine but when I drive around with the pedal barely pressed down or stop and go it wants to studder. I've noticed that the solenoid is super hot as well. I'm runnin 48v with a dcx400 controller, 1/0 wiring and a plum quick motor. Any ideas guys?
Is nothing else feeling really hot? Just be your comment of the solenoid being "super hot" I'd replace it. Go ahead and buy an XD sized one too!
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Old 07-18-2016, 11:20 AM   #3
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Default Re: Studdering issues at low throttle

Shudder is often solenoid bouncing in and out... would explain the heat too.
but why?
hi amp draw- low voltage?
Which solenoid?
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Old 07-18-2016, 12:21 PM   #4
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Default Re: Studdering issues at low throttle

I did find the cable that goes from the battery pack to the controller slightly loose.

Scotty it's the 48v solenoid I bought from you
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Old 07-18-2016, 01:46 PM   #5
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Default Re: Studdering issues at low throttle

Loose cable is the worst! They get really hot and melt stuff

Check all 20 cable connections in this cart.
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Old 07-18-2016, 02:21 PM   #6
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Default Re: Studdering issues at low throttle

I checked all the connections and drove it again. I didn't drive it far to see if the solenoid got hot but it is still jerking some. Think the damage is done and the solenoid needs to be replaced?
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Old 07-19-2016, 04:28 PM   #7
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Default Re: Studdering issues at low throttle

I talked to the guy at Graham's and he thinks it's the inductive throttle sensor going bad. Says it might have a crack in it
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Old 07-19-2016, 06:14 PM   #8
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Default Re: Studdering issues at low throttle

That solenoid is pretty tough it has weld resistant contacts.
You can test the ITS signal. voltage measured between pins 1 & 2 for DCX controls
(ITS) Min. pedal up > 9.90 V < max. pedal down 6.35 V (variance +/- 0.5v)
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Old 07-20-2016, 02:22 PM   #9
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Default Re: Studdering issues at low throttle

So the day before our trip I brought the cart home from work and we got caught in some bad weather with some strong rain. I pulled the mat back and opened the cover to check on the ITS. There was some water in there among with some dirt. I pulled the ITS off and cleaned it as well as cleaned the water out. Put it back together and it seems to be working like a champ. Thanks for the help guys
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