kjtdrt,
On my 2000 van, the first time the CEL came on, at 50K, I reset them. They did not come back for a year (after 10K miles). I did not notice any thing in the operation of the van. I reset them again. Took another year. Reset them again. Came back after 2 weeks. Decided to do the repair my self. In your situation, I would just wait until the CEL came back and see how long it takes. In the mean time it is not going to ruin anything. Just my opinion.