Repair Manual

IGNITION AND INJECTION
17
17 - 14
INDUCTION COIL
The induction coil is a double-coil with stationary distribution of the voltage without
moving elements. The voltage in the secondary circuit of the coil can reach 30 KV, the
distance between the spark plugs electrodes should be 0,8 mm and the spark plugs wires
should have a special construction according the new concept of anti-electric interference.
When the engine is on contact the coil is supplied with a (+ DC) voltage; it is controlled
by the electronic control unit (-), as follows:
- for spark plugs 1 and 4 – pin 1;
- for spark plugs 2 and 3 – pin 19.
The secondary circuit is closed by the two spark plugs; the spark voltage at the cylinder
under compression is about 20 KV; the auxiliary voltage at the cylinder under evacuation
is 250 – 300 V, reversed polarity.
DESCRIPTION OF THE SYSTEM
vnx.su