i was hooking up my apexi neo and all that i had connected were the 2 hot wires, 2 ground wires, and the rpm wire. everything was working fine but when i went to crank it, it would not turn over....i checked all the wires to make sure they had good connection and they did...so now the apexi neo does not even come on and also, there are NO HOT WIRES in the ecu. NONE AT ALL!!! what is wrong????? main relay or what? please help me!

 

could be the main or you fried your ecu...did you remember to take the neg terminal off when you were installing you apexi controller