P2C80AIR System Pump Overspeed Bank 1
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2C80 says the secondary air pump on bank 1 is turning faster than it should. Newer designs use a brushless motor whose speed is measured: an FCA patent describes a pump with a Hall sensor and target wheel so the controller can infer the air mass delivered from the revolutions and adjust pump speed. If the pump spins too fast for its command, it is working against little or no resistance, or its speed control has lost authority. No manufacturer documents P2C80 publicly; CARB requires secondary air systems and their electrical parts to be monitored. Possible causes are a detached or split outlet hose, a damaged impeller or shaft coupling, and a faulty speed signal or pump electronics. Cold-start emissions rise while the car drives normally. P2C81 is overheating, P2445 a pump that delivers nothing.
- What you may notice
- Check engine light
- Louder or higher-pitched pump noise after a cold start
- Secondary air readiness not completed, emissions test may fail
- Likely causes
- PossibleOutlet hose detached or split so the pump runs without back-pressure
- PossibleDamaged impeller or loose coupling between motor and impeller
- PossibleFaulty speed signal (Hall sensor) or its wiring
- RareDefective control electronics inside the pump
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €20 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.