I’ve been posting many questions and I appreciate your patience... Yesterday I replaced the PCV valve and when it was back together I couldn’t rev the engine above 3000 rpms while in neutral and if I tried eventually the traction light would come on (!?) and it would stall. There is also a lot of smoke and it smells of fuel. I’m guessing it’s not getting enough air and running incredibly rich. Error P2138. I had removed the intake manifold yesterday and so I assumed maybe something with the throttle body. I happened to have another throttle body and so I just replaced it and there’s the same problem. I feel like it must be related to my work but I’m not sure where else to look. Any ideas?