P2C80
AIR System Pump Overspeed Bank 1
The secondary air injection (AIR) pump on bank 1 exceeds the calibrated maximum speed. Indicates load lost or supply voltage too high.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Pump impeller damaged - load lostCommon
- Supply voltage above nominalPossible
Parts involved
- Secondary Air Injection Pump B1
- Wiring Harness
- ECM
P2C80 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.