changed transmition from auto to manual
1) The RPM went down to 500rpm with A/C. 600rpm without A/C.
2) The Speed meter is not reading correct.
3) When i Shift to revers its heavy and hard.
Never mind the Revers. If i want my speed meter to read Correct and my RPM to increase people told me to format(or flash) the power train control unit and install 1999 manual transmition program. Will i Have problems. If yes What Problems will i face.
PLEASE PLEASE PLEASE. Reply to my Email. Engine_HP@hotmail.com


