I spent a good part of the day researching the LX9 reluctor and it'* events. It is in fact the same reluctor as the LS1 (it has the same pattern).
The question stuck in my mind is whether or not it has the same phasing (is TDC #1 compression stroke).
From this point on, I will assume that it is.
I started by plotting out the entire reluctor in a word processor.
You can see that I found 72 pulses. 72/3 is 24 events. Which means that each event is three pulses. So each cylinder gets 8 events or 24 pulses. For example, the first event for cylinder 1 is low low high or Y. The next event is low high high or X.
I used the following to determine phasing with the CMP sensor.
And this is the result:
Just the red markings. Ideally, the picture would be of the other side of the reluctor. I'll try to get a different picture so I can show the reluctor spinning in the correct direction.
This can easily be translated to decode a LS1 reluctor (since they are the same). Instead of each cylinder having 8 events, it has 6. So it would decode:
YXXXXX YXXXYY XXYYYX YXYYY