【单选题】

Remove the test cap on the control pressure sense line from the Precooler Control Valve to the 3908 sensor and make sure air flows out of the test port.

A、Remove the test cap between the Precooler Control Valve and the 3908 sensor on the control pressure sense line and ensure that there is air flowing out of the port.
B、From precooler control valve to 3908 sensor, remove the sense line test cap, make certain that the air flows from the test huB.
C、The purpose of the test cap removal from the Precooler Control Valve to the 3908 sensor is to guarantee that there is airflow at the test port.