Required characteristics for system regulation (those. optimal values used by the computer) are determined empirically on a test stand, and then refined during road tests of the car. As a result, this gives the most favorable values for fuel consumption, exhaust gas composition and other engine characteristics in any mode of its operation.
Failure of one or more of the sensors used by the computer to calculate optimum engine performance can result in reduced engine power and increased fuel consumption. Serious damage to the engine should not be feared, since in such violations the computer activates an emergency program and automatically sets the ignition to a later date.
Computer operating modes (those. programs) can also be changed using a special connector. This is necessary if, for example, fuel with a different octane number is filled.
On vehicles with a Motronic ignition system, the ignition distributor distributes high voltage to the spark plugs via a rotor.
The rotor is driven directly from the camshaft. Centrifugal and vacuum ignition timing controllers are not needed here, since their functions are performed by a computer.
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