Question on Cold Starting

[Clare Snyder]

>>when cold, first ignition pulse triggers a "prime " pulse on all injectors.
>>This is a common setup, used by GM and others. Easy enough to implement, I
>>would think, even as an addon.just a oneshot triggered by the ignition
>>pulse, and not retriggerable.
>
>Any guess as to the pulse duration at 20 degrees C?
>
>Ric Rainbolt
>
>
Nope - try about double the standard idle pulse, for starters