What P2004 means
Intake Manifold Runner Control Stuck Open Bank 1
Common causes (general)
Before spending money on parts, verify the code with a scan tool and read freeze frame data. Freeze frame captures every sensor value at the moment the code set — this is often enough to figure out the root cause without further testing.
Manufacturer-specific descriptions
Different manufacturers use this code for slightly different failure modes. Here's what your specific make means by P2004:
| AUDI | A failed IMRC actuator, A problem with the intake manifold or linkage, Wiring issues |
| BMW | Intake Manifold Runner Control Stuck Open |
Read this code on your own car
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