Powertrain
generic / SAE
P2444
Secondary Air Injection System Pump Stuck Off (Bank 1)
The secondary-air pump does not run when commanded during cold start. Often a seized pump (after exhaust back-feed corroded the impeller), a blown fuse, or a failed relay.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 44
Possible causes
- Pump seized by corrosion high
- Pump relay failed medium
- Pump fuse blown medium
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–800 €
- Estimated time: 0.5–3 h
- Component: secondary air pump
- Component: secondary air pump relay
- Component: secondary air pump fuse
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012