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P2394
Diesel Intake Air Flow B Control Stuck Open
Generic · engine
Data confidence
65%
The control module determined that the Diesel Intake Air Flow B Control did not change state as commanded and appears stuck.
TuningBot DTC Database · v4.37.15
P2394 Diesel Intake Air Flow B Control Stuck Open
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2394 means
Related and nearby codes
How to read P2394
P
Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
394
Specific fault index within the subsystem.
Frequently asked questions about P2394
What does P2394 mean?
Diesel Intake Air Flow B Control Stuck Open. The control module determined that the Diesel Intake Air Flow B Control did not change state as commanded and appears stuck.
Is P2394 generic or manufacturer-specific?
P2394 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2394 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic