Please, Watch the pictures of a 190E engine section. The Yellow broken electrical connector to the left is a line coming from a sensor located in front the engine. I think it is taking some signals from the crank shaft. In my M.B. 300E, 88, it is coneccting to the round test socket.
The gray to the right is an opened vacuum line. In my 190E the line out was eliminated. In the 300E a vacuum line is coneccted to the gray opened point and go inside the car passing side the fuse box.
Please tell me what are the effects of these disconeccted lines.
What is this sensor and How to test it?
Where have to go the vacuum line? Can It affect the idle or another divice?