Powertrain
generic / SAE
P2424
HC Adsorption Catalyst Efficiency Below Threshold Bank 2
The hydrocarbon adsorption catalyst on bank 2 - which traps HC during cold-start until the main catalyst lights off - is degraded; HC slip during cold start is above the calibrated threshold.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 24
Possible causes
- Catalyst adsorber aged high
Symptoms
- Check engine light on
- Failed emissions inspection
- Possibly slightly increased fuel consumption
- Sulfur (rotten egg) smell from exhaust under load
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–1800 €
- Estimated time: 1.5–5 h
- Component: hc adsorption catalyst b2
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012