Honda Accord '98 oxygen sensors burn out and short out EMS?


I’ve had the MIL light on in my '98 Honda Accord and the garage has tried cleaning vacuum tubes and a few other things no avail. Replaced the oxygen sensors and now I’m told that the old burnt out sensors have somehow shorted out or burned out the computer (I’m assuming this is the EMS)because the light is still on - is this possible or sound likely? This is a $1000 repair.