i just put a to4e turbo setup with external wastegate 35mm and a mbc i was woundering if you have to hookup the n75 to boost or can I just hookup the electrical connector and install the mbc to wastegate . Also Im only boosting 5psi of boost and i have a 1bar spring in my wastegate, I have a code P1136 lean condition, dose that mean Im in limp mode.