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Fuel injection

Fuel injection


Fuel injection with the MOTRONIC 2.10.2 system is sequential, i.e. it follows the firing order of the engine.

Injection duration is determined by the control module on the basis of a number of parameters:


• engine load (mass air flow sensor)

• engine rpm (crankshaft sensor)

• engine temperature

• Oxygen sensor

• etc.


The injection times can be varied so that when starting from cold, for instance, fuel can be injected with open inlet valves.

The opening duration of the injectors varies from about 3 ms at idling speed to about 15 ms at full throttle.