Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
402
Specific fault index within the subsystem.
Frequently asked questions about P0402
What does P0402 mean?
Exhaust Gas Recirculation Flow Excessive Detected. The control module detected that the measured Exhaust Gas Recirculation flow was higher than the value expected for the commanded state.
Is P0402 generic or manufacturer-specific?
P0402 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0402 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.
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