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P0492 — Secondary Air Injection System Insufficient Flow (Bank 2)

Bank 2 secondary air injection insufficient flow.

Severity: MediumRepair: $100-$600Difficulty: Medium

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Common symptoms of P0492

Common causes of P0492

Repair cost & difficulty

Typical cost to fix P0492: $100-$600 · Difficulty: Medium

Pro tip: If both banks are restricted, the air pump may be weak or the shared hose is leaking.

Vehicles commonly affected

BMW, VW, GM

Related trouble codes

P0410P0411P0491

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.