I am new to this site and hope someone can give me some assistance. I have a trouble code P0026 on my '09 Forester 37K miles. The last couple of weeks temps in Pgh. are very cold. Is it possible this code is due to the weather or should I take it in and have it checked? My son suggested waiting until the temps are back above freezing before taking it in to see if the check engine light goes off.