Got the **** P21DD and P20B9 codes. Dealership is low on service techs and out of loaners. They said they might be able to get it in to look at it today but wouldn't give me a loaner till it was diagnosed. My response was Well how do I get to work then? He said they would take me home and hopefully get me something figured out by the end of the day. I was supposed to drive the car back to Wyoming 1000 miles on Monday for work. Maybe GM will pay for my rental and plane tickets???