Code result

P0492

Secondary Air Injection System Insufficient Flow

Moderate severity

What it means

AIR system flow on bank 2 is below threshold during the cold-start self-test — typically a clogged check valve, leaking hose, or weak air pump.

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

  • Check valve clogged

    high

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

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