Efi connection to cuav7x pro

hello guys, i have an EFI for my DLA32 EFI with STARTER GENERATOR, and i am trying to connect it to my flight controller cuav7x pro (ardupilot) i checked all documentation in arduplane efi but no results, i need to read RPM, ENG TEMP, but i cant, it seems i am missing something, so if any one has idea or knowledge about this? thank you

I resolved the connection directly TTL ECU output cable to UART4 (cuav 7xpro ) and enable Ice_enable , reboot FC .
Get readings:- EFI RPM , EFI INTAKE TEMP, EFI EXHAUST TEMP, EFI HEAD ENGINE TEMP, EFI FUEL FLOW ml/min.