superseven

Hi guys.. I have a question. I have an early 2008 g4 ecu for series 6 Mazda Rx7. In the manual for this ecu, it mentions nothing about the CAN port, but in the manual for the for the series 7 and 8 rx7 ecu it does have a function for this, am I right in assuming this ecu is too early for this capability? I'm trying to sync a Haltech IC7 to it not having a lot of luck. The port for CAN bus exists on the board, and I have connected to it, but the manual for it mentions nothing. Any help would be greatly appreciated! Kind regards,Jason