Powertrain
generic / SAE
P2AED
Intake Air O2 Sensor Pumping Current Circuit Low Bank 2
The pumping current of the intake air oxygen sensor on bank 2 reports a circuit low condition. Wide-band lambda regulation on the intake side is impaired.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / ED
Possible causes
- Pump current wire shorted to ground high
- Internal short in pump cell medium
- Connector pins corroded - high contact resistance low
Symptoms
- Check engine light on
- Increased fuel consumption
- Possible rough idle or hesitation
- Failed emissions test
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 150–800 €
- Estimated time: 0.5–3 h
- Component: intake air o2 sensor b2
- Component: wiring harness
- Component: ecm
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012