Spartan 3 CAN Bus connection to OBD2

Hi, Would it be possible to connect the can high and can low terminals of the Spartan 3 to an OBD2 socket in parallel with the existing vehicle can bus and see the Spartan 3 as a new module in the software along with the rest of the “normal” information?
I’m wanting to log the WB AFR against the NB AFR, rpm, fuel trims and ignition etc.