Fuel Pump 10 bar or 120bar that is the question

Hi , I have a Audi Cabriolet 1999 B4 1800 petrol. Does anyone know what the correct pump it is for this ? I have been sent one , but there is now a problem that when its driven the power steering is ok BUT when you apply brakes to slow for " roundabout/turn " the power steering goes hard as though NO power steering . Could anoyone shed some light , have been told look at the sphere done .. ok . Filter ..done clear !! Thanks

That’s a very difficult thing to answer, for a start I don’t know of a power steering system that runs at 10 Bar. We need proper details of your car and what it had and what you have fitted. Why did you replace the pump? Did you flush the system clean before fitting a new one.

Yeah, more details about your ride would obviously help us determine the cause of the problem.