Code result

P2424

HC Adsorption Catalyst Efficiency Below Threshold Bank 2

Moderate severity

What it means

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.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Catalyst adsorber aged

    high

    One of the most commonly reported causes for this code — check this first.

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