Check engine light came on, never happened before...?

How do I find the part number to replace this part?

 

https://www.tacomaworld.com/threads/new-camelback-toyota-employee-here-to-help.415891/

 

Ok. I sent an email to him. I am also contemplating just buying a code reader for $100 and erasing this code. This part is not essential for the operation of the engine and it appears that my truck is not in "limp" mode as well. I don't notice any abnormal engine operations that would make me feel that the engine is sluggish in any way. All this part does is work for 1-2 minutes at cold start and then has no part in engine operation after that. Its an air injection system that is required by the EPA. Thoughts on just clearing code?

 

Ok. Bypass kit sounds interesting, I will check into that as well.