IAC Position

Display shows counts from 0 to 255. This display indicates the commanded position of the Idle Air Control (IAC) valve pintle. When a higher idle engine speed is desired the control module will retract the IAC pintle, increasing airflow and increasing the count value. When a slower idle engine speed is desired the control module will extend the IAC pintle, decreasing airflow and decreasing the count value. 0 counts would indicate a fully closed IAC pintle