Error code
OBD2 P2424
OBD2P2424
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
HC Adsorption Catalyst Efficiency Below Threshold.
Severity
moderateCan be driven, but emissions may exceed legal limits and fuel efficiency could decrease.
Summary
P2424 indicates that the hydrocarbon (HC) adsorption catalyst efficiency is below an acceptable threshold on bank 2 of the engine.
Common Causes
- Clogged or damaged HC catalytic converter
- Faulty oxygen sensors
Fixes
- Replace the HC catalytic converter.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P2400Evaporative Emission System Leak Detection Pump Control Circuit/Open
- P2401Evaporative Emission System Leak Detection Pump Control Circuit Low
- P2402Evaporative Emission System Leak Detection Pump Control Circuit High
- P2403Evaporative Emission System Leak Detection Pump Sense Circuit/Open
- P2404Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance
- P2405Evaporative Emission System Leak Detection Pump Sense Circuit Low
- P2406Evaporative Emission System Leak Detection Pump Sense Circuit High
- P2407Evaporative Emission System Leak Detection Pump Sense Circuit Intermittent/Erratic
- P2408Fuel Cap Sensor/Switch Circuit
- P2409Fuel Cap Sensor/Switch Circuit Range/Performance
- P2410Fuel Cap Sensor/Switch Circuit Low
- P2411Fuel Cap Sensor/Switch Circuit High