Attention! Your vehicle has a microprocessor ignition system (IPSZ) high energy. A voltage of approximately 40,000 V is applied to the high-voltage wires, and although it is not life-threatening at a low current value, a possible electric shock when checking the ignition system can lead to serious consequences. Therefore, if you take on a high-voltage wire with the ignition on, use a thick rubber glove or, in extreme cases, pliers with insulated handles.
Note. Before checking the ignition system, place the shift lever in neutral and leave the parking brake applied.
1. Check the tightness of the ignition module mounting screws, as it determines the fit of the module tips on the candles.
2. Check the low voltage circuit of the ignition module (see Removal and installation of the ignition module).
3. If the low voltage circuit is OK, check for spark at the spark plugs. Remove the ignition module and reattach the wiring harness to it.
4. Insert spare spark plugs into the tips of the module and connect their cases one by one, for example, with a wire to start the engine from an external current source to «mass» car (for example, to a wire connected to the negative battery terminal). Have an assistant turn the engine crankshaft with the starter.
Attention!
- Reliable contact of the candle body with «weight» is mandatory, since if an additional spark gap appears that is larger than the gap between the spark plug electrodes, the engine control unit or the high-voltage circuit of the ignition module may be damaged.
- Carry out the indicated check for no more than five seconds so as not to damage the exhaust gas converter as a result of the ingress of unburned gasoline in the engine cylinders into it.
5. If there is no spark at any high-voltage output of the module, check if fuses No. 3 and 4 in the mounting block located in the engine compartment are blown. If the fuses are blown, replace them and start the engine.
Attention! Do not install fuses with a higher current rating, as this may damage the electrical equipment and even cause a fire.
6. If there is no spark, replace the ignition module with a new one (see Removal and installation of the ignition module). If there is spark but the engine does not start, replace the spark plugs with new ones. You can also try to install not new ones, but proven ones, with «working» cars.
7. If after that the engine does not start, check the engine management system (see Fuel Injection System Malfunctions).
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