Best way to find a glitch...

[pumpkinfish]

Went to my track's first day of operation this Sunday. Last year I had no problems with my setup. All I did was change from a Kyosho 777 to a Mugen MBX6. During the winter I went to an indoor clay track and had zero issues with my setup. Sunday I was glitching all over the place. I do not have any of my wires touching the graphite so I am stumped. On one lap the buggy would run fine, then the next it would cut out on the throttle only but the wheels still turned. I even tried a different lipo pack. Could it be the receiver or the esc?

My setup is a MMM v3, Neu motor, Spektrum SR3100 DSM2 receiver, Neu 4s lipos.

[RUSTY XL-5]

I recently had this problem. I almost resorted to jumping on mine over and over again after I had done almost everything to fix the problem. My new servo ended up being bad.