At a recent auction I picked up a box of auto parts. Much to my surprise there was a computer in the bottom. It looks like a GM unit but inside its not too familiar ( I only have experience with my 88 2.8L ). It has to seperate chips in sockets, a 24 pin EPROM and a 16 pin prom. Its marked 86ASDU SERV NO 1227747 The eprom is ASDU 9567 Does anybody know this beast ?