The intake valve opens and closes to manage the flow of air entering through the intake manifold. It opens while accelerating, and closes when the engine idles.
The Intake Manifold Tuning (IMT) Valve Position Sensor/Switch receives voltage readings from the Barometric Pressure Sensor (BARO) and Mass Air Flow Sensor (MAF), which transmit information to tell the intake valve when to open or close. Likewise, the MAF Sensor and BARO Sensor provide the vehicle’s computer with information about the position of the intake valve. If these voltage signals indicate that the intake valve is not within the expected position, the P2076 OBD2 fault code is set.