Pretty sure ficd is ok, because we have established my r33 is a series 2 which runs ficd, but will clarify this with Matt once everything is sorted.
We know pin 32 on the z32 ecu is check engine lamp and pin 32 on the r33 is exhaust temp. So if we can find out what pin the check engine lamp on the 33 ecu, the signal can be moved from that pin to pin 32 and it should hopefully work. I just hope doing that doesn't throw the check engine light on the dash instead of the exhaust temp lamp.