I had a problem in my Vitz 2000, was jerking during gearshift. I took it to a mechanic, and according to him the problem was in the ECU. After changing the ECU, he also cleaned the throttle body.
The car is now fine, it does not jerk when the gears shift (it is an automatic).
However, the morning after, when I was checking the water and oil etc, I noticed that there were two pipes hanging, (unattached). these are in the throttle body section.
All the sections are shown in picture below. I am wondering how i connect them back to the sensor, without going to a mechanic?
Also another thing is that, i checked, there is no leakage from these pipes when the car is running. I wonder why were they even there before.