Left: inductive pulse encoder (arrow) located in front left in the engine block behind the crankshaft belt pulley. The pulse sensor transmits information about the number of revolutions and the position of the crankshaft to the control unit. This data is important for determining the ignition timing.
On right: in the photo, the arrow shows the camshaft position sensor of a 16-valve engine with the toothed 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 due to ignition, but still, touching bare contacts under adverse circumstances, especially for people with heart disease and especially for owners of pacemakers, will be very dangerous. That's why:
- Touch all electrical wires - as well as the connections of control devices - only with the ignition off, this also applies to connecting and disconnecting them.
- Disconnect the battery only when the ignition is off.
- If the engine is to be cranked by 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 dead battery using the boost charger, it must be connected for a maximum of one minute and the voltage must not exceed 16.5 V.
- Also, do not change thick ignition wires and their connectors for the first ones that come across.
- The same applies to spark plug connectors.
- Before electric welding on a car, the wires must be disconnected from the battery.
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