Hello, I am getting a P2442 code.

I hear this is a costly repair. I have a 2008 Toyota Tundra V6. I got the VSC/check engine lights along with the car/ squiggly lines 2 months ago. I looked this up and it said to replace the gas cap. I did and cleared the lights, truck was doing great. Yesterday on the way home from work, it suddenly went into limp mode when I took off from a light. The lights on dash board came on. Can anyone tell what this code means and what kind of cost this will be?

 

What the P2442 code means. If a P2442 code comes up, a one-way check valve is stuck open in the secondary air injection system, causing too much airflow into the exhaust and allowing hot exhaust gas to travel back into the pump.

https://www.youtube.com/watch?v=75q5PSBMX7U

https://www.tundras.com/threads/p2442-code-help.47874/