For those who needs back ground check the original thread http://www.nissaninfiniticlub....62262
I have spent about 4 days of diagnosis. Using only ohm meter along with the service manual. On the fourth day I was able to detect a bad throttle sensor and a revolution sensor.
So, I ordered them through Scottsdale. 1. throttle sensor US$49.552. revolution sensor US$101.25
It took me 2 minutes to replace the throttle sensor and 20 minutes to replace the revolution sensor.
Disconnected battery for few minutes and re-connected...Shifts like a champ :ylsuper Can't get any better... Finally, transmission problem solved.
Once again, thanks NICO and it's members for feed back.
[DriverDriver] I have a question for you. You said the dealer had to remove the transmission partially and the extension to replace the revolution sensor? and had to re-program the ECU? I am not so sure about that now.
... But thanks again for you feed back.