P2AEAIntake Air O2 Sensor Pumping Current Trim Circuit Low Bank 2
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2AEA reports a trim circuit voltage below the permitted range at the bank 2 intake O2 sensor. Likely culprits are a trim wire grounded where the harness passes the second turbocharger, or a damaged resistor inside the sensor connector. Ford's 2012 summary assigns the exhaust analog P2630 to NTK probes for an open or grounded RL lead, a reminder that a low reading need not mean a short. Engines with a separate bank 2 intake sensor are rare and no manufacturer documents P2AEA. If P2AE1 is stored too, look at what both sensors share, such as a ground point or the ECM; alone, P2AEA points to the bank 2 sensor and its own wiring. Meanwhile the EGR on that bank loses its oxygen feedback; the lamp comes on and NOx can rise, but the car usually drives normally. P2AE9 is the open, P2AEB the high fault.
- What you may notice
- Check engine light on
- Higher NOx, driveability usually unchanged
- Likely causes
- LikelyTrim lead grounded near the second turbocharger
- PossibleCalibration resistor in the plug damaged
- RareFault in a ground or ECM path shared with bank 1
- 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.