Hi all! Been lurking since February when I got my C-Max. I received the check engine light on Saturday with 3,659 miles on my car. Made an appointment with the dealer and brought her in on Monday. About an hour and a half later they told be in was a "loose pin fit in connector" So left with my check engine light off. This morning the check engine light was back on :drop: I have another appointment on Wednesday morning. I will let you know the out come.