Multi-Point Fuel Injection (MPFI): A petrol fuel injection system using one injector per cylinder. Only air enters the inlet manifold. As this air approaches the inlet valve, the injector opens in the valve port, spraying fuel into the air stream. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostMicro-hybrid Next PostMisfire