Limited responses via 0x7DF(Functional request)

[suleymaneskil]

First interesting thing is why is default can request id is 0x7E0 instead of 0x7DF or 0x18DB33F0. Because 0x7DF is functional address so I would expect many response from most of ecu. But when I send 09 0a (OBD ecu name request), the result is very insufficient.