I went and picked up my K&N SRI for my 2014 Mazda 3 and I installed it the same day. Tuesday morning I turned on the heat in my car to clear the windshield up from sitting all night and my car wouldn't blow hot air, it was blowing cool air. Something else that's strange is I'm also getting a lot more airflow from my left vent, next to my left hand, compared to the vents in the middle of the car; regardless of how high/low I have the fan blowing at.
I did the SRI installation myself and I didn't fiddle with anything aside from the crank hose and the air sensor, both of which I plugged back up. Anyone know the cause or what I could check?