I didn't think Euro cars carried OBD0, so no light for you. I do think you could wire up a US unit without any other troubles to get one if you really needed it.
Edit...there might be a way
here:you need to connect your globe between a switched 12V and the brown cable from pin 8 of the 1.7 ECU.
You will find this brown cable terminates at pin 12 of the C101 engine loom plug under the plastic cover on the firewall. Pull back the c101 rubber cover and you can access the end of cable. I just push the wire from the globe into the recess.
F10 is the feed for the 12v so you can push your other globe wire onto the fuse.
Switch on ignition and the globe will light. Forget stomping the gas pedal, just activate the throttle by fully open by hand once, wait and then open fully 5 times. the globe will start flashing in a sequence of four digits separated by one long flash and continue to repeat while igntion is on.
Write down the series of flashes and go to the PelicanParts website to get the error codes.