Code P2006 on the 2024 Jeep Compass indicates the Intake Manifold Runner Control (IMRC) is stuck in the closed position on Bank 1. The IMRC system varies intake runner length for optimized airflow at different RPM ranges, and a stuck mechanism affects engine performance.
IMRC System Purpose
The IMRC system uses movable flaps or butterflies in the intake manifold to change effective runner length. Short runners (flaps open) provide better high-RPM breathing, while long runners (flaps closed) improve low-RPM torque. The ECM commands flap position based on engine speed and load.
Stuck Closed Effects
When stuck closed, the intake provides only long-runner configuration. Low-end torque remains normal, but high-RPM power suffers due to restricted airflow. You may notice the engine feels sluggish at higher speeds and RPMs, with reduced top-end performance.
Common Causes
Carbon buildup on the IMRC flaps can prevent them from opening. The IMRC actuator motor can fail. Broken flap linkage or pivot points cause mechanical binding. Wiring issues prevent the actuator from receiving commands. Vacuum actuator failures occur on systems using vacuum operation.
Diagnostic Approach
Command the IMRC to open using a scanner and verify flap movement either visually or through feedback. Listen for actuator operation. Inspect for carbon buildup on flaps. Test actuator motor and control circuit.