This is a Code for the intake runner control on bank 1. It is a part that moves shutter controls to change the airflow inside the intake manifold. Browse the web for this part "Intake runner control or Solenoid" with your vehicle info.
What it does- In old days Intake airflow was casted into the part and not adjustable. Because of Variable valve timing, intake airflow needs to adjust. Newer intake manifolds have multi-chambers and this part allows air to change from one chamber to another.
Sometimes it is easily to replace than clean the part, some earlier parts had plastic ends which broke, solenoids failed, etc.
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