ECU Pulling timing with and without water injection.

[kaipyroami]

I have a 1.8t and have been monitoring the timing with vagcom I turned my water injection off an it was pulling 5-6 degrees of timing in the mid rpm range. After turning the injection back on I was seeing the same 5-6 degrees of timing pull.
why would I not be getting more advance with the injection?

I am using 100% water and a 225cc/min flow