I had recently bought a 2001 Volvo XC70 AWD 2.4T and it had a P0014 and PO422 code. It drove ok and seemed to lack on test drive but I bought it anyway for $3000. It had 126,000 miles. As soon as I got home it started smoking like a chimney, white to greyish smoke not too much odor. I check the timi...