I did give that a shot and let it dry out overnight (I live in Southeastern Arizona so it's hot and dry) but the codes returned and I started having a noticeable misfire. Turns out that I actually had a bigger problem, electrode on the spark plug in cylinder 6 was completely gone and my Disco was long overdue for new spark plugs! As soon as I switched over to a new spark plug the code was cleared and never came back. Switching out all the rest and tackling the spark plug wires this weekend too!