Probably. In those ecus there is mostly no protocol implemented to read anything from the rom.
And the Eproms are mostly one time programmable, so you have to desolder anyway to make changes. Google 27C1024 datasheet.
You might get lucky when searching online for VR6 Stuff, since it is a similar ecu family...
But i doubt for 1.8l
Good luck
Open the ecu and take a picture. Save the speculation, and find out what you actually need