[Diy_efi] Injector operation

[Adam Wade]

--- peterw <peterw at waybeat.com.au> wrote:

> So, why isn't the amount of fuel regulated by
> controlling how much the injector opens rather than
> having the injector fully open always and
controlling
> the time.?

Because A) there is a distinct advantage to having the
fueling event occur for a small section of the
engine's full cycle, most particularly at lower rpms
and smaller throttle openings, and B) it's a lot
easier to build a cheap, reliable, long-lived solenoid
than stepper motor.

=====
| Adam Wade                       1990 Kwak Zephyr 550 (Daphne) |
|   http://y42.photos.yahoo.com/bc/espresso_doppio/lst?.dir=/   |
| "It was like an emergency ward after a great catastrophe; it  |
|   didn't matter what race or class the victims belonged to.   |
|  They were all given the same miracle drug, which was coffee. |
|   The catastrophe in this case, of course, was that the sun   |
|     had come up again."                    -Kurt Vonnegut     |

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