Left: the inductive pulse sensor (arrow) is located in the front left of the engine block behind the crankshaft pulley. The pulse sensor transmits information about the speed and position of the crankshaft to the control unit. This data is important for determining the ignition timing.
Right: the arrow in the photograph shows the camshaft position sensor of a 16-valve engine with the timing belt cover removed. Its task is to transmit information about the ignition position of an individual cylinder to the control unit.
Fortunately, no one has ever heard of a car owner dying because of ignition, but still, touching the exposed contacts under unfavorable circumstances, especially for people with heart disease and especially for those with pacemakers, would be very dangerous. Therefore:
- Touch all electrical wires - including instrument connections - only when the ignition is off, this also applies to connecting and disconnecting them.
- Disconnect the battery only when the ignition is off.
- If the engine needs to be turned over with the starter without starting it, the ignition must be disconnected (see next section).
- When washing the engine, the ignition must also be turned off.
- To start the engine with a discharged battery using a boost charger, it must be connected for a maximum of one minute and the voltage must not exceed 16.5 V.
- Also, do not replace thick ignition wires and their connectors with the first ones you come across.
- The same applies to spark plug connectors.
- Before electric welding on a vehicle, the wires must be disconnected from the battery.
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