I was trying to jump my 93 and now nothing happens when I turn the key to try to start it (no starter). The digital display is not working either, but the gauges and other displays seem to be OK. Is there anyway I can tell if and what the extent of the damage is to the ECM and digital display? Will the digital display work if the ECM is fried?
ALWAYS try the cheap/free fix first - and this does sound like it could be a bad battery. You were trying to jump start it, so it was low or bad to begin with, and a bad cell can cause similar problems. Switch out with a known good battery and see what develops before spending money on anything . . . and good luck.
On earlier cars there is no fusable link in the cable to the starter from the battery. There may be a fusable link to the solinoid/switch circuit. On my car, it is best to remove the left fender (only takes ablut 5 minutes or less). There is a terminal distribution block under the battery box, with most of the fusable links all in one spot. I think it might be worth a try.
Also, if you had to grind it long and hard while jumping, you may have damaged the starter, itself, but this would not explain the cluster problems.