Gas stuck?

Vehicle Data:

Passat 3B
Year of manufacture: 1998
Motor: AFN
Odometer reading: 255,000



Hello everyone!

Yesterday, something very strange happened to me! When turning into a junction, I shifted gears incorrectly and almost stalled the engine.
The electronics attempted to compensate and adjust – which is perfectly normal. However, the engine then ran at 1,500 RPM instead of the intended 960 RPM during idle.
By disconnecting (removing the load), this state could not be eliminated - only a restart restored the normal state.
The error memory is empty.

Assumptions:

- It seems unlikely that the engine electronics have simply 'failed' temporarily?

- If the actor for controlling the injection quantity has been affected, shouldn't an error also be stored?

- A possible mechanical issue could be in the pump (the adjusting ring for the injection volume gets stuck) - the extent to which this is detected by the engine control unit is uncertain...

What do you think?

Anyway, the car ran perfectly normally again afterwards.

LG Manuel

[Translating...]

1500 U/min im Leerlauf und keine Reaktion des Gaspedals bedeutet eigentlich Notlauf wegen Fehler im Gaspedal.

Das Pedal wird dann vom STG abgeschaltet und damit man fahren kann eine Drehzahl von 1500 zur Verfügung gestellt.

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