P0106 code, Would this be covered in the power/drivetrain warranty? 100,000wrnty

Well initially what I did was buy some thorttle body cleaner and cleaned the throttle body. After that it took a few cranks and then it ran correctly. After driving it around for a few miles the check engine light came on. Cleared the code twice now and it keeps coming back. RPM's fluctuate as when I am in drive it idles quickly above 1500. Doesn't drop below that and as I put it in neutral it revs between 1500 and 2500. Breaks also become hard and doesn't respond normally. Feels like it's hard and doesnt stop. Weird that it would be affecting the breaking system. Thoughts??? Can I just clean the Barometric Sensor??

on the map sensor.i don't think cleaning it will help.it sounds like you have brake booster problem also.do you here any air leaking in engine area anywhere?with the car off,pump the brake pedal 5 or 6 times,hold it,keep foot on brake,crank it up.what happens? and also,before you start replacing things,find out what is covered in your warranty,so you don't throw money away.