Ashen

Rb 25 det twin turbo. Not revving above 2400 rpm. And no idling. When the accelerator pumps it keeps running betweeen 2400rpm. And i checked the afm wiring no 12v + power in the socket. Its running with apexi fc commander . Wire harnes is good. New plugs. Everything cleaned .please help me on this. Thankyou!!! And it only runs with ssetting 5 on air flow catagory. Photo attached .