To determine the reasons for this failure requires a special diagnostic equipment, so in this case refer to the service station specializing in the repair of cars with fuel injection systems.
However, it should be noted that most of this fault is the refusal regulator idling or leak outside air through leaky hose connections, attached to the throttle assembly. If replacing the controller (see.
"Check and replace the idle speed regulation") and tightening hose clamps restore idling failed to refer to specialists.