U0100 code even though battery was replaced. Intermittently, car won't start and when it does, check engine light comes on. Any suggestions? Thanks!

What is your question?

Only happens intermittently, and then it's fine for a few days. Car runs great otherwise. This happened two days after a 10 hr drive.

What makes this problem better or worse?

Can’t tell.

How long has your 2009 Ford Fusion had this problem?

1 week