Powertrain
generic / SAE
P2C81
AIR System Pump Overtemperature Bank 1
The AIR pump on bank 1 reports temperature above the protection threshold. Sustained operation, blocked outlet, or cooling path obstruction.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberC / 81
Possible causes
- Pump outlet restricted high
- Sustained pump operation medium
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1200 €
- Estimated time: 1–4 h
- Component: secondary air injection pump b1
- Component: wiring harness
- Component: ecm
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012