2011 48V Precedent Acceleration Problem

[ahall]

I bought a 2011 Precedent a couple months back, tore it down to the frame and have rebuilt the whole cart with brand new parts. The only thing left from the original is the frame, floor board and battery bucket. I have brand new duracell batteries, 4awg cables, a new 10lol solenoid, obc, alltrax 400 amp controller and I plum quick Black Ops motor. I also replaced the pedal assembly and the throttle sensor with a new 10lol piece. The cart seems to vary in speed and the accelerator pedal isn't very responsive. It feels like I have to double pump it to get it to go and most of the time there is a very distinguishable lag. I have heard that some of the cheap MCORs have had problems, but I just don't want to start shot gunning parts after the amount of money I've already put in this thing. Any help is appreciated!

[jasonojordan]

Should be able to connect to the alltrax with a laptop and see what values its reading from the mcore to help rule it out.