RPM Problem

Hello
i am tracking a problem in my CX 7 Automatic translation since my turbo blow up , for a year searching all possible way to solve my issue , before changing my turbo everything was fine ,
was :
800 rpm -> press accelerator ->2500 rpm -> release accelerator ->1000 rpm ( Idle )
now There are two cases
*800 rpm -> press accelerator ->2500 rpm -> release accelerator ->2000 rpm ->drop slow-> 1500 rpm
*800 rpm -> press accelerator ->2500 rpm -> release accelerator ->2000 rpm ->aggressive pedal pressing -> 3000 rpm -> release accelerator -> immediate drop to1500RPM ->
i feel load in the engine and gearbox now doesn't feel comfortable while driving sometime I shift to (N) to make the engine Chilling
i checked EVAP - Actuator - IMRC - Solenoid Valve - Vacuum leak
i am really frustrating of this i hope i can find a help from anyone

 

Hi still trying to figure out this problem its annoying issue for me
since long time i am tracking an issue with my cx7 2nd generation 2.3l turbo - automatic transmission
current problem is when i drop of throttle it stay on the gear with no up shifting , the feeling as engine brake has engage , what it should be ( after few second the rpm drop on same time upshifting for saving gas )
example
i am driving in 5th gear with steady drive , i drop gas it will stay on same gear 5 and rpm drop slowly as feel like engine brake until rpm reaching 1500 sometime to 1200 then it will gear up to 6 with idle speed

before it was like this
let off throttle and after few seconds rpm drop to idle and car engine getting comfort , was nice when I drive at high way or down hill drive , now i feel its too much pressure on the engine

 

Have you checked fluid levels? It almost sounds like the transmission s going out.