A little over a week ago my wife's CX7's cel started flashing (after driving about 20miles) and when she came to a stop it stuttered. A few more miles down the road the cel went solid and remained that way for the remainder of the day. It did not stutter anymore and the next morning the cel was off. I finally got it to the auto part store to check the code and it was P0300....no known misfires/stuttering or cel in the last week (since first accurance)....any insight is appreciated. Thanks!
