Influence of the swirl flaps
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A malfunction on the part of the swirl flaps has only a slight effect on the air mass system test.
However, a malfunction of the swirl flaps can lead to fault entries with regard to plausibility of the air mass.
When driving, a malfunction of the swirl flaps has the following effects:
- Swirl flaps stick in closed position: lack of power at high engine speeds
- Swirl flaps stick in closed position: deterioration of exhaust emissions