The detonation sensor established on the block of cylinders reacts to high-frequency fluctuations of the block of cylinders and transforms them to the electric signals which size increases at increase in a detonation. On the basis of these signals the ESM block displaces the ignition moment towards delay therefore the detonation is eliminated.
Check
PERFORMANCE ORDER
Disconnect the socket from the sensor of a detonation and measure resistance between socket plugs 1 and 2. Resistance: more than 5 megohms at 20°C.
If resistance differs from given in the specification, replace the sensor. Inhaling moment: 16–25 N • m.
Measure capacity between socket plugs 1 and 2. Capacity: 800–1600 пф.