Well despite replacement pump my pas has failed under track conditions again.... Can't be the pump then so could my refurb rack be dodgy? Where can i look now for whats crashing the power steering ?

If it helps, I did notice the usual time it clipped into limp mode was if I hit a kerb a little too hard on a corner. It got me wondering if perhaps the jolt of the car was causing an electrical issue - perhaps there is a bad earth somewhere in the system?? It was crashing into limp mode at other times though when not hitting anything.

Mine sounds like its on the way out aswell!! Cars not done 50k yet!!