P0411
Medium severitySecondary Air Injection System Incorrect Flow
Quick answer
P0411 (Secondary Air Injection System Incorrect Flow) means: The secondary air injection system (used at cold start) isn't flowing correctly. Plan a workshop visit; mainly affects emissions. Typical Malaysia repair cost: RM300–RM1,200 (approximate).
Symptoms
- •Check engine light
- •Possibly noisy cold start
Likely causes
- •Faulty air pump
- •Clogged passages/valves
- •Wiring fault
Can I drive?
Plan a workshop visit; mainly affects emissions.
Estimated repair cost (Malaysia)
RM300–RM1,200 (approximate)
This is general information, not a diagnosis. AutoMalaya OBD helps explain your car’s actual scan data; a qualified mechanic may still need to inspect the vehicle.