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Looks like the main difference is the addition of the SRS airbag system in the 93. Here are the two greenbook wiring diagrams for the two systems. I think what you will need to do if you want to keep the new plug is figure out whats in it and terminate/connect wires as needed. Alternatively, it may be in your best interest to reconnect the wires you cut by using decent wire crimps and heat shrink.
Alternatively you may be able to follow this old turbobricks article that is focused on upgrading to LH2.4 from Kjet/2.2 but it shows you what you need to make it work.