Hello dear suffering afflicted with the throttle problem of the Z16XEP engine. I came across a Russian side during my research where the problem is described. No new flange has to be installed if the wear of the mechanism has not progressed too far! Basically: The poti to the throttle sends to the motor control unit the respective position of the throttles. The working area is between 0.1 volts and 4.9 volts. If the mechanism is now concealed, If these values are outside of this range and the MSG stores the error that the poti is defective. If you now have a readout device and can access the parameters of the MSG, you can read out the reported values. Now you move the checkers manually and read out the values. 3 solution approaches: (under this link you can see the appropriate images: http://www.autopro.spb.ru/showrem.afp?remedy=15) Approach 1: The end stop of the checkers is located at the Röhrch The screw which fixes the poti(picture1). If one installs either a thicker tube here or makes this tube “dicker” with other means, one changes the final stop of the flaps in the necessary direction. Approach 2: Take the pipe between air filter and the suction flange. Below it is the vacuum box that controls the mechanism(picture2). This vacuum box is fixed with 2 screws. The front is slightly shorter the rear screw is the lä Now the shorter screw is released and the longer one is removed only. Now you have the possibility to move the vacuum box around the axis of the longer screw and to move the mechanism into the desired position and thereby change the end stop. After correct alignment you tighten the longer screw again. The shorter one no longer fits into the guide, which is no longer bad, because the longer one is fixed enough. I have not yet tested these approaches. But I wanted to give you the opportunity to try them out and possibly solve the problem yourself! Good luck! All information without guarantee!