The other day i was backig out of my drive-way, and i heard a belt squeel. Took the cover off to see the P/S belt was loose, and the adjustment was just hanging there. So i tightened the P/S belt. Drove fine, parked it for the night. This morning i start the car up, 06 STi that is, and the check engine light was on, cruise control was flashing. Popped the hood and i could kind of hear a whinding noise from P/S belt. Did i over-tighten the belt? why would that throw a code? and why is cruise control flashing?