We have a 94 953C new drive motor, new wiring harness with upgrade. When we bought it sight unseen (Lesson learned there I hate liars) we were told the only issue was the AC. We had it shipped from Texas. The machine will stop moving in forward and reverse. Once in neutral and moved again into forward or reverse it will go again for a minute. Our mechanic tries to calibrate the machine but once he starts the calibration will kick off and is incomplete. We are a mom and pop operation and this has set us back a gold piece not just a penny. serial number is 2ZN00920 if that helps. We have been working on this machine since 8-4-21 and it is still just a yard ornament. Engine runs great no other issues besides it not moving as it should. I don't know the codes it threw.
Well first thing please supply a list of the Codes being generated. Also it would be a good thing to have a photo of what's displayed on the Monitor Panel when the calibration kicks out. 2nd question do you have a way of measuring engine high idle RPM.? The track loader gurus may ask other questions but those will do for a start.