To add to that... it tells the computer where #1 cylinder TDC is. Once the
engine knows that it will fire the injectors "timed" to the cylinder firing
order. If the signal isn't there then it just fires all the injectors at 50%
fuel twice per crank rotation. The engine will start and run, but just be
down on power some. For all you 2.0l owners just unplug it and see if the
engine starts and runs. Be warned the MIL will come on but will go back out
in a few days once plugged back in.

Class over-- Beer time!


"Tom's VR6" > wrote in message
...
> In rec.autos.makers.vw.watercooled, G-Ram wrote:
>
>>
>>Maybe a discussion on what the hell a Hall Generator is and what
>>function it performs is in order...
>
> In addition to the other info, its main function is to tell the
> engine computer when to fire the spark.
>
>
>