Renault Megane 2003 Presure Drop In Gearbox

Hi
I have problem with Megane 2003 DPO gear box.
DTC pressure regulation DF049 pressure drop to 2.2 bar in D when hot. Ganging EVM valve didn’t solve problem.
Same DTC return after EVM replace. All bolts thighs to specific torque.
Help needed...
Thanks.