Alfa Romeo 159 CAN stream

Is it possible to send only once the CAN massage at turning on the key(Emu Black V3)?
The car is after swap from 2.4JTDm to 2.4T petrol, ecu from JTDm is not present, all the cluster(rpm, clt, check, etc.) CAN I worked out. But I also need to send “register” info at the beginning of communication, otherwise the ESP and the Body unit are unhappy, esp won’t activate Hill holder; body informs about immo not working(not a big thing without ecu) and so called proxy alignment is bad so the odo is blinking(annoying:-)).