MGM Compro 80

I just got to installing my MGM Compro 80 and Feigao 8s in an old RC10 I had laying around. The thing rips faster than I have ever seen it move.

My only problem is that I can't seem to get into programming mode. I have a 3PK with pcm receiver. Every time I put it at full throttle and turn it on nothing happens. When I let off the throttle it acts as if I had just turned it on and throttle, brake and reverse work like normal. I think the reason why is my receiver but I wanted to get someone else's opinion.

Thanks