I was hoping someone could help me identify this hose. Not sure what happened - kind of looks like a mouse or something chewed on it? The hose has #3 printed on it and is coming out of part of the air intake. I searched for some diagrams, but couldn't identify it and hoped someone here would know what it is or have a good diagram to look at. Thank you in advance!

 

Isn't there a sticker under the hood like this: https://www.clublexus.com/forums/rx-...l#post10084755

 

I guess it does! I just had never noticed it on the hood. Thank you! So it looks like it’s one of the pwm vacuum hoses.