What causes a P2004 code?

Common causes: Carbon buildup; Failed actuator; Broken linkage.

What are the symptoms of a P2004 code?

Typical symptoms: CEL; Low-end torque loss.

Yes — this code is generally safe to drive with, but address it soon to avoid escalation. Estimated repair: $100-$600.

OBD-II Code · Fuel & Air

Intake Manifold Runner Control Stuck Open (Bank 1)

medium severitySafe to drive$100-$600

IMRC stuck open on bank 1.

Common symptoms

Likely causes

Where to start

Try the cheapest cause first. Start by checking: carbon buildup.
Cost & scope. $100-$600
If the code returns after the fix: escalate to a shop or scanner with live-data and freeze-frame. A code that re-sets means the underlying fault is still there.

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