Powertrain
generic / SAE
P0410
Secondary Air Injection System Malfunction
A general fault in the secondary air injection system. The system pumps fresh air into the exhaust during cold start to accelerate catalyst light-off; common faults are a seized pump, blocked passages or a stuck valve.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / 10
Possible causes
- Air pump seized (water ingress is a common cause) high
- Combi valve stuck medium
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 150–800 €
- Estimated time: 1–5 h
- Component: secondary air pump
- Component: secondary air valve
- Component: secondary air hose
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012