Sable car GAZ-2752, 2217, 2310>> Electric equipment>> Ignition system>> Detonation sensor

Detonation sensor

The detonation sensor (0261231046 Bosch or GT 305) – piezoelectric type, is established on the block of cylinders of the engine under the inlet pipeline of the fourth cylinder. The sensor perceives vibrations of a wall of the block, caused by the shock waves which are forming at detonation combustion in cylinders, and gives out the alternating voltage corresponding to level of a detonation of the engine on connecting contacts. The control unit filters the signals appearing as a result of casual mechanical influences.

At sensor or malfunction failure in its chains the electronic control unit will pass to a reserve operating mode with obviously late corner of an advancing of ignition, will include a lamp of a signaling device of SZ and will write down a malfunction code in memory.