Electrical circuit

Electrical circuit

Removing-refitting engine timing sensor

This operation involves removing the timing belt and the camshaft toothed pulley, exhaust side.

Having carried out these operations, it is necessary to:

• disconnect the electrical connector;
• undo the two fixing bolts (arrow) and remove the sensor.

When refitting carry out the procedure in the reverse order, following the instructions for fitting and tensioning the toothed belt.

NOTE The sensor does not require any type of adjustment.

Removing-refitting engine rpm sensor

Position the vehicle on a lift, then, working from underneath the vehicle:

• disconnect the electrical connector;
• undo the bolt fixing the sensor and remove it from its housing.

NOTE The sensor is fitted in production with tolerances which ensure a gap of 0.8 ± 0.4 mm without requiring further adjustments. This gap is also ensured if the sensor is replaced with a replacement one.

If you wish to check the gap between the sensor and the flywheel, proceed as follows:

• measure the distance between the end of the sensor and the lower part of the sensor bracket (distance "a");
• measure the distance between the fitting element on the cylinder block/crankcase and the upper part of the tooth (distance "b"), repeating the measurement for at least two opposite teeth.

The gap (t = b-a) should be between 0.4 and 1.2 mm.

1. Sensor
2. Fitting element
3. Flywheel tooth