Prepare fixtures «00.2.407» And «00.2.550», read the information from the fault memory of the ECM of the DME system, turn off the ignition and remove the stiffening plate.
Unlock loop (pic. 4.125) and disconnect it from the engine speed sensor.
Remove the screw (arrow, see fig. 4.125) and remove the sensor together with shims, if installed.
When replacing the automatic transmission, drive disk or gear wheel of the crankshaft speed sensor, it is necessary to pay attention to the presence of shims between the automatic transmission housing and the sensor, which regulate the gap between the end face of the sensor and the teeth of its disk (0.55±0.2mm).
When installing a new sensor, it is necessary to measure the distance between the end face of the pulse sensor and the teeth of its disk, for which:
- turn the crankshaft by the central bolt clockwise so that a tooth is visible through the hole of the removed sensor (1, fig. 4.126);
- make sure that the tooth (1) the sensor was located strictly in the center of the hole;
- using a device «00.2.407» (arrow, fig. 4.127) or «00.2.550» measure the distance (depth) from the surface of the sensor installation plane to the teeth of the automatic transmission drive disk and record the result of the measurements obtained - «IN»;
- measure the size «A» on the sensor body (Ah, fig. 4.128);
- get the gap value of the sensor / gear disk of the drive disk, subtracting the size «A» from the value «IN», get the result, which should be equal to 0.55±0.2 mm;
- using shims, set the value to 0.55 mm as accurately as possible, because it ensures spark accuracy.
At the end of the replacement of the crankshaft speed sensor, it is necessary to read information about malfunctions from the memory of the memory of the ECU-KSUD system «DME», eliminate them and erase the information from the memory memory.