P2424Hydrocarbon (HC) catalytic converter, bank 2 - efficiency below threshold
Generic (OBD-II) interpretation in the TuningBot DTC database.
P · PowertrainEmissionsOBD2
What P2424 means
P2424
Hydrocarbon (HC) catalytic converter, bank 2 - efficiency below threshold
Generic · emissions
Data confidence78%
The control module calculated that Hydrocarbon (HC) catalytic converter, bank 2 efficiency dropped below the calibrated threshold for this application.
Symptoms
MIL illuminated
Possible smell of unburnt fuel or reduced performance in severe cases
Possible causes
HC catalytic converter
Recommended checks
Compare upstream and downstream oxygen sensor signals
Check for exhaust leaks
Check for stored misfire or mixture codes first
Verify catalyst temperature plausibility where available
Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
424
Specific fault index within the subsystem.
Frequently asked questions about P2424
What does P2424 mean?
Hydrocarbon (HC) catalytic converter, bank 2 - efficiency below threshold. The control module calculated that Hydrocarbon (HC) catalytic converter, bank 2 efficiency dropped below the calibrated threshold for this application.
Is P2424 generic or manufacturer-specific?
P2424 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2424 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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