I still think my problem is throttle valve switch related because I could still get 5 V on my ICV, indicating power are going throuht ICU. I took out th eOVP last night and found the 87E (ABS) is connected with 87L (Idle). If there is a problem I will definitely see ABS light comes out.

I still could not get 0 ohms between TVS idle tips. Having done some research on the forum, I think I will still working on lubricating throttle linkage next. In one of the messages, he got his idle back by simpley spary Carb cleaner on the TVS.

Got some time this long weekend. If I can't get it done, the car is going to dealer shop early next week.