[Ben97]

The OD light is flashing in one of my dads work trucks, doesn't this mean it's in limp mode? How do I get it back to normal? It's a 95 f250 with a 351 gasser...

 

[Mark Kovalsky]

The way to get it back to normal is to have the codes read. Then fix what's wrong and it will be back to normal.

I think it's an OBDI so any cheap ($25) reader can read those codes. So can a paper clip if you have the diagram, which I do not.