p0411
Moderate
Skoda · Sedans & Hatchbacks
Secondary Air Injection System Incorrect Flow Detected
Quick Answer
Error code P0411 on your Skoda Sedans & Hatchbacks means: Secondary Air Injection System Incorrect Flow Detected. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Inspect secondary air injection pump operation
2
Test air check valve for proper flow direction
3
Verify solenoid valve activation with multimeter
4
Check all SAI system hoses for damage or disconnection
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Air pump assembly
Check valve
Solenoid valve
Hoses and connectors
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