Got a groovy mystery for you oppos.

My friend’s 88 cutlass has a check engine light. It also has a carb. It has a diagnostic port, we hooked up a old snap-on red brick scanner to it and it thought the car had six cylinders. I know there’s some sort of trick jumping terminals on the diagnostic port. Could google it but you guys are more fun. Car is not new enough or old enough to fall within my experience. Car is shiny (I did that part.)

There’s lots of ways to make an idiot light go away. He wants to know what it is though.