P2AE2Intake Air O2 Sensor Pumping Current Trim Circuit High Bank 1
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2AE2 means the voltage on the trim lead of the intake air O2 sensor for bank 1 is too high. In the six-wire harness of a wide-band probe this line runs next to the heater feed, so a pinched wire or moisture bridging the pins in the connector can drag it towards battery voltage. Ford's 2012 OBD summary books a trim lead shorted to battery as P2628 on NTK probes and under the general high code P0132 on Bosch probes; neither covers an intake sensor, and no manufacturer documents P2AE2 publicly. CARB requires input circuits to be checked for values beyond their range in both directions. According to Bosch the trimming resistor fixes the sensor characteristic, so a falsified value shifts the oxygen reading that EGR control relies on. Check plug and lead against battery voltage before fitting a new sensor. P2AE1 is low, P2AEB bank 2.
- What you may notice
- Check engine light on
- EGR reduced, NOx may rise
- Likely causes
- LikelyTrim lead touching the heater supply
- PossibleMoisture bridging contacts in the sensor plug
- RareInternal short in the sensor or its connector module
- 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.