how does it work S215A Power steering, rpm-sensitive

[carlosbolso]

Hello, good day, create this topic to get information about this extra e30 that I discovered recently and searched everywhere and I didn't find any data on how power steering sensitive rpm works interested in putting something in the car, I have a convertible with an m30 and the address is very sensitive

[DanThe]

If you mean your steering feels sensitive it could well be due to a 5 series pas pump being used which gives a higher output pressure

[carlosbolso]

if I know that it is because of that I am about to change it but I wanted to know how that extra works
because nowhere is there information