The system of ignition of the petrol engine is intended for ignition of gas mixture in chambers of combustion of cylinders.

Fig. 210. Elements of system of ignition on the 2,0-liter engine (with system of injection of Simos): 1 — VN wire, to a spark plug; 2 — the tip suppressing a radio noise; 3 — a protective cover; 4 — a cover of the distributor of ignition; 5 — a begunok of the distributor of ignition; 6 — a three-contact shtekerny block; 7 — a dustproof cover; 8 — the ignition distributor with the Hall sensor; 9 — an O-shaped sealing ring; 10 — a clamping lath; 11 — a bolt, 25 N · m; 12 — a spark plug, 30 N · m; 13 — a tip of a wire of VN, on a spark plug; 14 — a bolt, 20 N · m; 15 — the sensor of a detonation (G61); 16 — the transformer of a high voltage (N 152); 17 — the target cascade of the transformer of a high voltage (N157); 18 — the plug "15"; 19 — the plug "1"

Fig. 211. Elements of system of ignition on the VR6 engine (with system of injection of Motronic): 1 — a trekhkontakny shtekerny block (black color), for the Hall sensor; 2 — the Hall sensor; 3 — a bolt, 10 N · m; 4 — VN directing wires, to the transformer of a high voltage; 5 — a rasporny ring; 6 — a five-contact shtekerny block, to the transformer of a high voltage; 7 — the tip suppressing a radio noise; 8 — the transformer of a high voltage; 9 — a shtekerny block of the sensor of a detonation; 10 — a cover of the driving mechanism of a camshaft; 11 — a bolt, 20 N · m; 12 — the sensor of a detonation of II, on the soaking-up party; 13 — a disk of the sensor of the Hall; 14 — a bolt, 100 N · m; 15 — the sensor of a detonation of l, on the release party; 16 — a spark plug, 25 N · m; 17 — an O-shaped sealing ring; 18 — a spark plug tip

At the 2,0-liter engine ignition system (fig. 210) is included into the incorporated system of injection and Simos ignition, and at the VR6 engine ignition system (fig. 211) is included into the incorporated system Motronic.

Association of system of injection and ignition in uniform electronic system has the following advantages:

- combination of functions of units and sensors allows to reduce their number;

- processes of ignition and a smeseobrazovaniye are optimized in common, characteristics of a torque, fuel consumption, OG structure thus improve, start-up and warming up of the cold engine is facilitated;

- great opportunities for performance of other functions open:

- management of an automatic transmission;

- management of protivobuksovochny system;

- management of anti-blocking brake system;

- management of the conditioner, anti-theft device, etc.

Systems of ignition have no mobile details and consequently do not demand service. They have no adjustments as management of ignition completely electronic and is carried out to EBU using information on power setting, received from sensors of a control system by the engine.