My issue now is no pressure at low clutch tab, this issue started when I removed the VB because I wanted to check why I was having slight high pressure at idle at low clutch and reverse tabs, the entire VB was assembled correctly so I put it back together and installed it back and when I checked low clutch tab for pressure, gauge didn't show anything and car wouldn't move forward unless it was accelerated at around 2K RPMs but is very very slow, I checked for pressure at reverse tab and gauge showed high pressure at idle and car would move backwards.
I checked all wire harnesses, inside the transmission, in the engine bay, in the plenum chamber, in the instrument panel, I even removed the dashboard to check all the wires and grounds.
I found dirty ground points and 1 of them loose, a brake light switch closed at all times (both internal switches) and solenoid N93 having continuity between ground terminal and solenoid body which old solenoid does not have.
I corrected all these issues, I replaced new N93 with the old N93. But transmission was still not showing pressure at low clutch tab. Then I checked TCM to see if it was energizing N88, N89 and N92 and one of them was not being energized when in D, a repair shop quoted too high to repair the TCM, I bought a used one, installed it but still no pressure at low clutch tab, I checked TCM to see if it was energizing N88, N89, N92 and N93 and this TCM is energizing them. This is when I disconnected the TCM to make the car go into limp mode and car started moving forward when at idle, and moved backwards when in R, so something is inhibiting the TCM to correctly comand the solenoids???...am I correct?
All fuses, relays, wires, sensors and solenoids are OK. TCM is not showing any DTCs but still cannot see pressure at low clutch.
Any input you may provide will be very much appreciated.