Wow!

Thanks Mark, for even more illumination on how things work in our
mechanical beasts!

This is all great stuff for those of us that don't know!

John

On 11/16/2013 4:24 PM, mark drillock wrote:
> The injectors do fire in time with the engine position. All 4 injectors
> fire once every hall pulse which happens every 180 degrees of crankshaft
> rotation, so twice for every engine revolution. The ignition spark is by
> definition according to engine position and the fuel injectors fire
> based on the same triggering event that the ignition uses. Of course the
> ECU adjusts the ignition point to optimize it. The ECU also cuts off the
> injection pulses when conditions dictate, such as going down hill with
> your foot off the gas, assuming your throttle position switch is working.
>
> Mark
>
> Scott Daniel wrote:
>> minor correction ...waterboxer injectors don't turn on 'every
>> revolution' ..
>> They are triggered continously in pulses...or in 'injector on time, in
>> milliseconds of duration.'
>>
>>   - as one big 4 part injector too btw.  Called batch fire.
>> Not sequential, not timed to engine or piston position.
>> Somewhat crude.
>>
>>
> .
>