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Poor driveability, deteriorating performance, irregular or hesitant acceleration

Symptom: Poor driveability, deteriorating performance, irregular or hesitant acceleration

Poor driveability, deteriorating performance, irregular or hesitant acceleration

Fault symptoms

Poor driveability, deteriorating performance, irregular or hesitant acceleration

Conditions

The following conditions apply for the current fault symptom:


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


Diagnostic help



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

Checking the wiring

Note

Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Observe the multimeter, diagnostic tool or test lamp during the check.