I have finally made some progress with this. After waiting for CAN chips to arrive then spending hours building a CAN interface I still couldn't 'talk' to the OBD port! But I have now got something working using the ISO protocol! So I can now confidently confirm that the Crossfire does not use CAN for the OBD port, it is ISO.

I am still determining which OBD PIDs the car supports but so far I have been able to read the coolant temp, RPM and throttle position in real-time. I really need to sort some better software now to do much else.

More later...

Simon.