Strange behavior after Alltrax install (jerky throttle and motor cutoff)

[HogKiller]

Originally Posted by Sergio

I am glad it is working but there must have been other factors in your setup that affect how those settings interreact with each other.

I always used 38.5v for Under Voltage on my FLA batteries and now use 45v with my lithium, as You said even your logs showed the lowest voltage at 44.7v.

Those FSIP torque motors seem to place a large current demand on the batteries.

I’m certainly open to interpretations. I do not presume to know even a tenth of what people like you do. My hope was to provide a comprehensive picture of what is going on and what I’ve done about it. Reading those tea leaves is above my pay grade.

[CCNorth]

Originally Posted by Sergio

While You are waiting on the new speed sensor, make sure the cables on the motor connections are tight and that the Solenoid does not have any extra wires on the big stud that goes to the controller.

Make sure the Controller B- cable lug is first and the other negative wires go on top.

The best stacking connection on Controller B+ would be Motor Cable first then cable from Solenoid on top.

You should also remove the speed sensor and make sure the magnet is secure and intact on the motor shaft.

Hogkiller, I don't see a response from you to Sergio's suggestions so just wondering if you checked these things. I know the last one about the speed sensor can be eliminated since you have replaced it.
You need to eliminate anything outside the controller that could be contributing to the problem, as Sergio is saying. It's easy for all of us to overlook simple things. And if you did not use a torque wrench, especially on the battery connections, you need to to be sure nothing is under/over torqued. Riding in rough terrain like you do can loosen connections, as I'm sure you know, so they need to be checked regularly.
Hope this helps you.