Hi. 2002 307. I have had intermittent power steering problems for 2 months now. it just stops occasionally but always ok if I leave it overnight. I took the pump of and stripped it down at work to major components. The electric side feels perfect, the electronics board you can do nothing with and the mechanical pump also rotated perfectly. there is an adjusting nut inside but I did not touch that. Put it all back together perfect for 5 miles then stopped. Is there anything else I should check before blowing a fortune, where does the pump get its signals from to provide a turn, I just do not know how the system works. I will be gutted to change a pump and get it programmed to find there is a loose sensor or something ??????