Help with Code P2440

Hi everyone
I did a road trip up to Maine Saturday, about a 450 mile round trip. Everything was fine until I started the truck up this morning. It did sit all of Sunday and the temp has been going up and down above and below freezing here in NY. My check engine light was on and the truck was flashing 4LO and no traction control. This means if I am correct that it is in limp mode. I used my scanner when I got to work and it said code P2440 valve stuck open in bank 1.

I read the old post on the code and it being the air check valve. I can get each one for around $140 from rock auto. But I was wondering if I needed to replace the valve or I saw you can get a bypass kit and plates for the pump.

I have a 2011 4.7 V* with about 170,000 miles.

I would apricate everyone's input on the best way to correct the issues. I did erase the codes and I will see if that helped when I leave this afternoon.

Thanks.

 

I have not had this problem, but from what I've read, secondary air injection codes are never as simple, or as cheap, as plugging in a $140 check valve. Witness the cost of the bypass kits that are popular. This is a bump to the top...others with experience will see your question.

 

If I ever have a problem with the valves or pumps I am doing the bypass kit.

 

As I am sure your researched has proven, the Secondary Air Injection System is failure prone and common on Tundras. I wanted to provide some recent threads we posted to educate owners on this issues. Anyone has any questions do not hesitate to DM or contact us.

What Does the Secondary Air Injection System Do?
https://www.tundras.com/threads/what-does-the-secondary-air-injection-system-do.113683/

What Do My Secondary Air Injection Error Codes Mean?
https://www.tundras.com/threads/what-do-my-secondary-air-injection-error-codes-mean.113686/

How to Fix Secondary Air Injection System?
https://www.tundras.com/threads/how-do-you-fix-the-secondary-air-injection-system.113688/