Hyundai Sonata Board Problem 1997

Hello everyone, I have a problem with the Hyundai Sonata 97 automatic account, I do not mark or half a revolution per minute, and I am trying to put it up to about 800RPM, I do not know what part the sensor or the device that I have to check to work for the board, look in the distributor but you do not see anything, grateful beforehand by the orientation.

Nelson