On a 2005 Sequoia, what does Code p1442 mean?

The code p1442 on a 2005 Toyota Sequoia means that the second air injection vacuum valve is stuck closed. This means that the amount of oxygen that is being allowed into the engine is not correct. This will make the car run rich or lean, which means the air to fuel mixture is too much or not enough. When this happens the engine will not work efficiently. In some cases it will just be sluggish, or tempeRamental, but in others, it may stall or fail to start. Even if the issue is minor, over time it can do damage to the engine, which is very expensive to fix. Therefore if You get this error code You are advised to take the car to the shop.