[hellblau82]

So I got my hands on a CIS pressure tester today.
I ran a few tests my first test running the fuel pump with the gauge attached and the WUR not connected showed 2.5-3 bars...when connecting WUR it had no response no increase in pressure as most guides recommend.

I noticed I had a small leak at the fuel pump which I fixed..and retested...and then I got up to 5 bars with the WUR disconnected ..when connecting again no increase..

Does this mean I have a faulty WUR..it was making some squeezing noises I'm leaning towards this being damaged