old topic but incase anyone else is after the solition in the future. the problem is the solenoid on the front steering rack. this is controlled by the hicas computer to make the steering really easy at low speed and a bit harder at hi speed 80km+ (when you wouldnt notice the harder steering) When people muck around with the hicas + the 32s getting old these days the hicas computer (located under the rear pacel shelf btw) tells the solenoid to make the steering harder by bypassing power steering flud in the rack sometimes when the car is below 80km which gives it a heavy feel, but not as heavy as no power steering, which is why people often get confused what the hell is going on.
the solution! take the solenoid off the front steering rack (3 bolts maybe?), trace the shape out on bit of metal plate, cut out the same shape and simply bolt on a metal plate in its place. Light power steering all the time!