Checking the ignition system

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WARNING: Your vehicle has a smart 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 strength, 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.


GOOD ADVICE: Before checking the ignition system, place the shift lever in neutral and leave the parking brake on.




1. With the ignition off, check the integrity and fit of the high-voltage wires in the sockets of the ignition coil.

2. Check the ignition coil (cm. «Checking the ignition coil»).



3. If the ignition coil low voltage circuit is OK, check for spark at the spark plugs. Remove the high voltage wire from any spark plug. Insert a spare spark plug into the end of the wire and press it with the metal part against «mass» car (e.g. to the cylinder head). Have an assistant turn the engine crankshaft with the starter.


WARNING: Reliable contact of the spark plug body with «weight» is mandatory, since if an additional spark gap appears that is larger than the gap between the electrodes of the spark plug, damage to the engine control unit or the high-voltage circuit of the ignition coil may occur.


WARNING: Conduct this test for no more than five seconds so as not to damage the exhaust gas converter if gasoline that has not burned in the engine cylinders gets into it.


4. If there is no spark, replace the high voltage wires with new ones. You can first try to install non-new, but verified, with «working» cars.

5. If there is no spark after replacing the wires, replace the ignition coil (cm. «Removal and installation of the ignition coil»). If there is spark but the engine does not start, replace the spark plugs with new ones. You can also try to install non-new, but verified, with «working» cars.

6. If after that the engine does not start, check the engine management system (cm. «Fuel Injection System Malfunctions»).







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