Caution / Notice / Hint

HINT: 

• DTC P050B may be set when the engine has the symptoms listed below. If necessary, check the trouble areas listed below.

  Symptoms	Factor	Trouble Area
  Low idle speed when engine is cold (immediately after engine start)	Excessive engine friction	Engine oil deterioration
  Rough idle when engine is cold (immediately after engine start)	Abnormal combustion	Fuel quality

• Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.