Removal and installation the knock sensor (VAZ-2115)

The knock sensor is installed on the left side of the engine cylinder block in its upper part in the area of the 2nd and 3rd cylinders.

You will need a 13 mm wrench.

1. Disconnect the wire from the "–" terminal of the battery.

2. Disconnect connector 1 of the wiring harness from detonation sensor 2. Unscrew the mounting nut and remove the sensor from the stud.



3. Connect the autotester to the sensor terminals, connected in the voltage measurement mode. Tap the sensor body on a solid massive object (for example, with a hammer) – the voltage should change. If the voltage remains constant, the sensor is faulty and needs to be replaced.

[The text is copied from the online portal VAZbook.ru]

Note: The sensor's serviceability can be checked more accurately using the DST-2 diagnostic tool while the engine is running.

4. Install the sensor in the reverse order of removal.