Computer is showing an over voltage code 53 on Chevrolet Corsica

Average mileage: 100,000 (100,000–100,000)
1 model year affected: 1991
2 people reported this problem
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problem details
Over voltage code 53 and poor engine performance can be caused by a faulty engine control module (ECM).
The EGR valve has been replaced, that didn't change the problem. The car will barely start, you have to give it a lot of gas to get it on, and to keep it from cutting off. When I have driven it, when I went a littler faster, it would smooth out, but when I wasn't going over 60 it would shake and sputter a lot. Any suggestions?