I have an 86 eta thats had been sitting for about 2 weeks due to the cold weather(it was almost freezing lol) and a badly leaking exhaust. I had to jump it the other day when I put my new brakes on and it ran fine after that until I noticed the OBC was going nuts. ( My backlit bulbs are out so it has to be pretty bright to see it lol) It is scrolling thru all sorts of letter, number, and what appears to be ancient cunieform writing
What would have caused this and how do I fix it? Thanks-Graham

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