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Text File  |  1993-06-07  |  748 b   |  48 lines
  1. Fuel Injection
  2.  
  3. Controlled either
  4. electronically by
  5. computers, or
  6. mechanically, fuel
  7. injection systems
  8. allow for more
  9. efficient
  10. combustion of fuel,
  11. and thus improved
  12. fuel economy,
  13. better mechanical
  14. performance and
  15. less polluting
  16. exhaust. 
  17.  
  18. Electronic fuel
  19. injection systems
  20. rely on sensors
  21. placed throughout
  22. the engine to relay
  23. information on
  24. engine performance
  25. back to an
  26. electronic control
  27. unit or computer. 
  28. From this
  29. information, the
  30. computer calculates
  31. the amount of fuel
  32. that the injector
  33. needs to inject
  34. into the combustion
  35. chamber. 
  36.  
  37. Four types of fuel
  38. injection systems
  39. are in use, port
  40. injection, throttle
  41. body injection,
  42. continuous
  43. injection and pulse
  44. timed injection. 
  45.  
  46.        -end-
  47.  
  48.