Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
428
Specific fault index within the subsystem.
Frequently asked questions about P0428
What does P0428 mean?
Catalyst Temperature Sensor High Input (Bank 1 Sensor 1). The control module detected that the Catalyst Temperature signal stayed above the expected range.
Is P0428 generic or manufacturer-specific?
P0428 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0428 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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