Detonation sensor

DETONATION SENSOR

The knock sensor is located on the monobloc under the inlet manifold.

This sensor has a through bush to prevent incorrect tightening.

If the sensor is replaced, do not fit washers or shims between crankcase and sensor mating surfaces.

When engine knock occurs, vibrations of a certain frequency are set up in the crankcase.

The effect generates mechanical repercussions on a piezo-electric crystal that sends a signal to the control unit. On the basis of this signal, the ECU implements an ignition delay strategy as described in the previous paragraph.

SOLID STATE IGNITION SYSTEM WITH HIGH TENSION FOUR OUTPUT IGNITION COIL

Solid state ignition does not use the distributor as a component for distributing high tension to the spark plugs. This is carried out by two ignition coils within a single block, each controlled by a power module located outside the ECU.

Each coil controls two spark plugs of different cylinders (1-4 2-3) (solid state breakerless ignition).

A. Primary winding
B. Secondary winding