Repair Procedure Correction/Addition:
Countermeasures against Knocking and/or DTC P030x on
FB2.0L DI engines
Details of Symptom, Cause:
Internal wear of the needle flange in the Injector makes the fuel mixture leaner,
resulting in vibration and/or misfire of the engine.
DTC P219A - D <AIR-FUEL RATIO IMBALANCE> can also be set.