Multiecuscan

Hi guys same problem as others: if I scan for an interface it says that it supports elm 1.4 and it should work with all CAN modules, but if I try to connect with it I always get a failure. This is my Kkmoon OBDII interface ver 1.5 , any resistor to remove? My car is : Punto Evo 1.3 Multijet 2009 and...