Check engine light and tire pressure light won't go off

I have a 2012 camry hybrid with 45,000 miles on it. 3 weeks ago I hit a metal post hard which caused a 6 inch crack on the lower driver side of the bumper. The next day the check engine light came on and so did the tire pressure light. I took the car to 3 different mechanics and all can not find any mechanical issues with it, they reset the light and send me on my way 3 hours later the light comes on. I am going crazy! I finally found another mechanic that claims the evaporator or sensor was damaged because of the small hit on the bumper. Can this be possible?