P2444AIR System Pump Stuck On (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
- P2444 means the secondary air pump keeps blowing after the engine computer has switched it off. GM checks this in phase 3 of its sequence, with the pump commanded off and the valve closed: if duct pressure stays higher than predicted – by more than 1.5 kPa within 5 s on the 2005–2006 3.8L V6, by more than 4.2 kPa within 10 s for the 2006 V8s in Corvette and CTS-V – the code sets as Type A and lights the MIL on the first trip; the 2018 tables keep the Type A rating. The usual culprit is a welded or sticking pump relay or a driver circuit shorted to power, less often a pump with internal damage. A pump that never stops can overheat and drain the battery. P2445 is the stuck-off fault, P2446 the bank 2 code.
- What you may notice
- Check engine lamp on the first trip
- Pump audibly running long after start or with engine off
- Discharged battery
- Likely causes
- LikelyPump relay contacts welded or sticking
- PossibleRelay control circuit shorted to power
- RareOutput driver in the engine computer faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €20 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.