Hey guys. I just got my 2003 350z VQ35DE a couple months ago. I had an error code to replace my knock sensor, and I did so. In replacing this, I removed the throttle body, intake manifold, and the fuel injectors. While putting it back together, I watched the youtube video on how to teach your car to idle correctly, I have done this about 5 times now and the more I rev my car, the more it wants to die. Also when it gets to around 200rpm, the car starts shaking really badly and theres a knocking/tapping sound coming from the engine. Now I'm not a huge tech person but and getting into it with this car, so I'm still not sure if it's just the plenum shaking and hitting another metal part? I just don't know where to go from here as I don't want to **** up the car even worse. I've looked up and it says I may need to clean the TB... or replace it.. and if the engine IS actually knocking... then what do I do from there? Anyways hopefully somebody can help cause I am completely shot in the dark lol

This link is to the video of the engine "knocking" : https://imgur.com/oS8fl7q

 

bump

 

Did you unplug the coils? Make sure the connectors are on the correct coils. People often swap the back two on the driver's side. Easy to do.

 

I don’t believe I had to touch the coils at all. I removed the pleneum and then the fuel injectors were underneath, which I also removed. And thats everything that had to be taken off