Code result
P2005
Intake Manifold Runner Control Stuck Open
Moderate severity
What it means
The intake manifold runner control (IMRC) flap on bank 2 is stuck in the open position. The IMRC swirls or tumbles intake charge at low rpm by closing one runner per cylinder; when stuck open, low-end torque drops and the engine may misfire on cold starts.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Carbon buildup blocks flap travel
highOne of the most commonly reported causes for this code — check this first.
IMRC actuator failed on bank 2
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
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