smartcarofamerica.com/threads/p0410-error-secondary-air-injection-system.164600/

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Forum thread: P0410 Error Secondary Air injection System | Smart Car of America Forum

smartcarofamerica.com/threads/p0410-error-secondary-air-injection-system.164600/ · p. 1 · Applies to: 451

Source: smartcarofamerica.com Topic: secondary air injection system Models discussed: 451 Solution status: unclear

Problem: 2015 Smart fortwo 451 displaying P0410 error code (secondary air injection system malfunction). Vacuum noise on startup previously disappeared, and issue persisted after replacing OEM air intake hose and resonator with aftermarket silicone pipe.

Solution: unresolved. Two options discussed: (1) Replace the air injection pump located on passenger side frame rail below alternator (requires right rear wheel removal and wheel well liner removal, with difficult-to-access bolts); (2) Accept the check engine light and continue driving. No user reported successful resolution or confirmation that either approach worked.

Key facts: - P0410 error code indicates secondary air injection system malfunction - Air injection pump is mounted on passenger side frame rail below alternator - Replacement requires removing right rear wheel and wheel well liner - Some bolts are very difficult to access - YouTube tutorials exist for this repair - Issue persisted after air intake hose/resonator replacement from Smart Madness - Periodic vacuum noise on startup ceased before error code appeared