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Unread 09-25-2015, 07:14 PM   #1
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Default mcor/ speed control

just put in mcor 4 cci 105116301 part number and a new speed control part number 400a EZ NPX4844/0-5K NOW CART will only go full throttle or stop basically 1 speed mcor was adjusting speeds normally until the speed control went south BTW. THE SAME EXACT PART NUMBER SPEED CONTROLLER is what I installed. it will jump screech tires and take off and run as long as I keep feathering the pedal it will stay running and pick up speed or stop unless I keep feathering the accelerator or stop and when I press down about a inch same thing. happens rips out and I gotta let off pedal everything on the speed control was down to the tee 1 wire at a time pictures b4 and after while installing.
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Unread 09-25-2015, 07:53 PM   #2
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Default Re: mcor/ speed control

To scotty or TahoeDawg--For 95 micor, doesn't he need a 5k-0 throttle signal at the controller and what's the "EZ" about? Wrong controller??


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Unread 09-25-2015, 08:06 PM   #3
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Default Re: mcor/ speed control

Throttle Input (Factory Programmed):
•ITS (inductive)

•Resistive 0-5K ohm (+/-10%) (2-Wire)

•Resistive 5K-0 ohm (+/-10%) (3-wire)

Ordered wrong,

Plus no cart info, plus why are so many parts going bad,
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Unread 09-25-2015, 09:38 PM   #4
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Default Re: mcor/ speed control

1995 Elmco club car. 48 volt Did the mcor with the part Tahoe dawg said I needed. Just needed it sooner that's another story sending Tahoe dawg a silver dollar from our store for postage I o him Tahoe was very fair. Was working fine until speed control finally played out it was already known to be going bad, put in exact same speed control a new one same part. Now it's either on or off. When ya hit pedal. Btw it's not a programmable. Speed control. THX for the ideas. BTW. Mcor 4 was the conversion from the
Original that is no less Nio longer made
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Unread 09-25-2015, 11:09 PM   #5
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Default Re: mcor/ speed control

I was wondering if the controller needs to be sent to Alltrax to be reprogramed for the Micro 4 throttle input. It might explain a lot of trouble. TahoeDawg or ScottyB would know for sure. Or contact Alltrax phone 541-476-3565 email: info@alltraxinc.com


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Unread 09-26-2015, 02:17 PM   #6
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Default Re: mcor/ speed control

Turn off the key and press pedal to floor, turn on key and let up to see if it accelerates ,


in post #3,

Throttle Input (Factory Programmed):
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Unread 09-26-2015, 02:45 PM   #7
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Default Re: mcor/ speed control

glass you may be on to something here as I let up slowly it does work PROPERLY only bass ackwards if I let up to fast it screaches and tries to tear out THX
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Unread 09-26-2015, 07:19 PM   #8
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Default Re: mcor/ speed control

Switched the 2 center wires green yellow now goes barely half speed then dies after about half throttle any ideas thx
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Unread 09-26-2015, 09:54 PM   #9
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Default Re: mcor/ speed control

If You want to keep that controller You will need to use the correct side of the MCOR to get a 0-5kΩ range.

Looking at a previous thread it looks like You replaced a 3 wire potentiometer.

If You look at the MCOR, it has 3 wires, locate the purple wire, it should have been connected to B- before.
Connect the Purple to throttle 1.
Connect Yellow and Green together to throttle 2.
You can also measure the resistance off those wires to make sure I have the colors right.

From: Yellow to Green (Pedal up = 6kΩ - Pedal Down: 0.5kΩ)

From: Yellow to purple (Pedal up = 0.5kΩ - Pedal Down: 6kΩ)

From Green to Purple ( Pedal up = Pedal down = 6kΩ = no change)

If You post the actual resistance readings, we can use that to fine tune the range later if needed.
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Unread 09-27-2015, 10:41 PM   #10
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Default Re: mcor/ speed control

Sergio thank you very much. I just gps the cart at 31 mph The original owner was lee Trevino after researching it.
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