The PCM monitors input data signals from the IMRC runner position sensor, manifold absolute pressure (MAP) sensor, manifold air temperature sensor, intake air temperature sensor, throttle position sensor, the oxygen sensors, and mass airflow (MAF) sensor (among others) to ensure that the IMRC system is operating as anticipated. In theory, the IMRC runners will be nearly closed during starting/idling conditions and opened when the throttle plate is opened. Use your vehicle information source (All Data DIY is an excellent resource) to obtain specifications for the IMRC system with which the vehicle in question is equipped. Using the IMRC to channel and restrict air flow, as it is drawn into the engine, creates this swirling effect but different manufacturers use varying methods. This can lead to a decrease in exhaust emissions, improved fuel efficiency, and optimized engine performance. It has been established that a swirling (air flow) effect helps the air/fuel mixture to be atomized more completely. When a vacuum operated actuator is utilized, the PCM controls an electronic solenoid, which regulates intake vacuum to the IMRC actuator. The actuator is maneuvered using a vacuum diaphragm on some models. The IMRC rod is connected to the actuator with a mechanical arm or gear. The flaps are opened with one motion, which also allows all of the flaps to be rendered inoperative if one of them is stuck or binding. In the IMRC, thin metal runner flaps are secured (with small bolts or rivets) to a metal rod that extends the length of each cylinder head and passes through the center of each intake port. Individually shaped metal flaps, which fit tightly into the intake manifold ports of each cylinder, are opened and closed by an electronic runner control actuator. The IMRC system is used to manage and fine tune air as it flows into the lower intake manifold, cylinder heads, and the combustion chambers. The PCM controls the IMRC system, electronically. Bank 1 tells me that the malfunction is associated with the bank of the engine that contains the number one cylinder. When I encounter a stored code P2010, I know it means that the powertrain control module (PCM) has detected an intake manifold runner control (IMRC) actuator circuit voltage (for engine bank one) that is greater than expected. Although generic, the specific repair steps may vary depending on make/model. This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to all 1996-newer vehicles (Nissan, Honda, Infiniti, Ford, Dodge, Acura, Toyota, etc.). Intake Manifold Runner Control Circuit High Bank 1 What does that mean?
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