Originally Posted by W1d0wMaker

looking over the vaccum diagrams, seems I am missing a vaccum controler right before the fuel pressure regulator, also when i remove vaccum before the fuel pressure reg, it runs rich at idle, and lean in boost, so unless someone says otherwise I am going to assume that missing this piece is not helping my fuel problem. i am also seeing some open vaccum hoses elsware not sure where they go, so i am currently going over my diagrams. I am also using the factory sc300 MAF sensor, not sure if that is causing any problems, but according to my diagrams and my research, the supra uses the o2 sensors to controle air fuel, the MAF is pretty much just there to be there. So please lend me your knowledge!