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Idling speed low or irregular

Symptom: idling speed too low or irregular

Idling speed low or irregular

Fault symptoms

idling speed too low or irregular

Conditions

The following conditions apply for this fault symptom:


• No diagnostic trouble codes in the car with the symptom description in question.


Diagnostic help



See Leak check, fuel pressure, flow capacity and adaptation procedures

Check the wiring

Note

Jiggle the leads and in-line connectors at various points and in different directions to detect any intermittent breaks or short circuits in the wiring. Observe the multimeter, test lamp or diagnostic tool while doing this.