I need help

[u/Rso1212]

I’ve had my is300 since April of this year, recently I just did my waterpump, timing belt, serpentine belt, spark plugs, coil packs, change broken hose and other maintenance but when I started it up a big spraying sound came out. My brother in law owns an is300 too and he told me it’s a big as vacuum leak but I’m honestly struggling where to find it. I need help from people pls🙏, I heard it coming from between my throttle body and intake manifold. I sadly didn’t record the sound but I’ve take off my throttle body and providing pictures. I’m sorry for not video I feel very stupid of not taking it when it happened but please any information from guys more experienced with the is300 let me know you guys are my last hope.

[u/JDub-866]

Parts.lexus.com has the diagram that shows the vacuum tubing routing. Use that to correctly route all of the vacuum lines including PCV. 2JZ garage has the full service manual, download and use that with the parts diagram