Labels:text | screenshot | font | black and white OCR: Fuel injection systems for gas engines differ from those used for diesels in that the fuel in not injected directly into the cylinder, but rather into the intake manifold; there is a throttle similar to that in the carburator, but it only serves to restrict the airflow into the engine at part throttle and idle. The fuel injection computer maintains the desired fuel air ratio. The advantages of this system are several. These include: 1) No venturi with its attendant restriction of flow at full throttle. 2) Total freedom to adjust the fuel input to any desired fuel air ratio, including all the performance and environmental "problem areas" described above. No choke is required. The computer "knows" the engine is cold, and richens the mixture accordingly.
