I have a 07 Camry LE 4cyl.I can not find a cure for the rough idle.It runs smooth as silk until i either turn the air on or apply the brakes and that is when the rough idle happens.It appears that the rough idle happens when a load is applied to the motor.Took it to my dealer and they blamed it on the battery.So I installed a new battery[ it was a little weak when tesed].They tested the altimator was checked also and was fine.After doing some internet reading, it sounded like the air mass flow sensor was giving other Camry owners the same symptoms, so I cleaned that along with the throttle body.That seem to smooth it out for a few days but then it returned.At this point I AM LOST!Does anybody out there have any other suggestions please?I am trying to avoid the dealer[at the tune of $100 per hour], since they did not know what was causing it either.