Knocking height sensor?

[squash]

So today I finally took the front wheel off to find a knocking sound that had been driving me mental, I found a little arm that comes off the swaybar connected to a sensor.

I removed the arm with 2 10mm bolts and drove around for a bit, there was no knocking, just asf off beeping at me.

I found this video after scouring the web:

 

 

This is my exact problem, now they cost about $300 to replace, does anybody know how I could fix this for cheaper? It is so annoying!