Two weeks ago my "Check Engine Light" came on. My neighbor brought over his code reader and read the P0140 code. I had him reset it. Last Thursday I was heading over to pick up my girlfriend for a 500 mile trip to PA and WV when the check engine light came on again so we took her Cadillac STS and left the XF at home.

Today I dropped it off at the stealership and we will see what they do.

More tomorrow.