P2AEDIntake Air O2 Sensor Pumping Current Circuit Low Bank 2
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2AED stands for a pumping current circuit on the bank 2 intake oxygen sensor that reads below its limit. A pump lead grounded on the engine or a breakdown inside the pump cell are the usual reasons. On exhaust probes Ford stores such a short for bank 2 under the general low code P0151 rather than a dedicated pump code, and Saab's 9-5 (2010) expects about 2.8 V on the pump terminal at ignition-on with the sensor disconnected. No manufacturer documents P2AED, and an engine using it would need one intake sensor per bank. If bank 1 reports P2AE4 at the same time, a common cause such as the ECM interface is more likely than two damaged leads. The EGR on bank 2 loses its oxygen feedback, so the ECM limits recirculation. P2AEC is the open, P2AEE the high fault, P2AE4 bank 1.
- What you may notice
- Check engine light on
- EGR on bank 2 limited, possibly higher NOx
- Likely causes
- LikelyPump current lead grounded on the engine
- PossibleBreakdown inside the pump cell
- RareECM sensor interface faulty (likely if bank 1 also reports)
- 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: €0 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.