I have had no look finding any help with my issue. My 2014 4Runner premium sport went into limp mode 3-4 months ago. Engine codes P2440 and P2442 secondary air injection pump. I took it to the “master mechanic” at a Toyota dealership and he replaced the valve set and air pump. 2 days later, it goes into limp mode again. Long story short, the mechanic and a few others couldn’t figure out why it keeps going into limp mode. It goes into limp mode maybe once a week and sometimes more. Need help guys. I appreciate it so much.