Revolution account does not work and Luz Averia Encn

Good afternoon to all:
I have an Opel Vectra from 98 Motor 2000 DTI I turn on the fault light and the Revolution account does not work for me.

Well, this is, this sensor also gives the revolutions, when it does not work well, it gives pulls, it does not pass from 60 km/h, it does not mark rpm, the light is turned on ... Cambial it, it is about about 30 EUR (FAE), if it is Bosch it comes out about about 60 or more, it is a typical breakdown in the Mot Dth Vectra Dth, (this sensor is in the front of the block, seen in front) it is simple to change (a torx screw). Greetings!!

Here I send you an image of the block, in the red arrow it is where the sensor is going, that is, near the oil filter (below on the right side). It is a three -pole connector, there unplugged you can check if it is badly measuring resistance between pole 1 and 2, or 2 and 3, it must give about 900 ohms, it happened to me that a few times did not give continuity and others if, in this case, in this case, in this case, in this case, in this case, in this case, in this case, in this case. (below it disassembles well)