http://www.skylinesa...ulator-new-ish/
maybe ??
Further information using google and trolling other sites for similar symptoms came up with these.
1. "The R32 relay by the boot catch is the relay that powers the ATTESA pump that pressurises the accumulator that is used to power the piston. If it clicks all the time, the pressure accumulator is knackered".
2. On an R32, the ATTESA hydraulic unit is mounted above the rear diff.
Usual system is a 12V hydraulic pump coupled to an accumulator to store the pressurised hydraulic oil.
A pressure switch cuts the pump at the required pressure.
The accumulator has an internal sliding piston with pre-charged nitrogen on one side and the pressurised hydraulic oil on the other. With time, the nitrogen leaks passed the piston seals so you then get no reserve of stored hydraulic fluid.
The pump has to cut in and out constantly to supply pressurised oil.
Recharge the accumulator with nitrogen, bleed the system and all's well.
Hope it's helpfull