P2630moderate severityPowertrain
O2 Sensor Pumping Current Trim Circuit/Open (Bank 1 Sensor 1)
on 2007 Ram 3500 5.9L I6 Cummins · 4WD
What this code means
There is an open or fault in the oxygen sensor pumping current trim circuit for bank 1 sensor 1. This affects the accuracy of the air-fuel ratio measurement.
Symptoms
- Check engine light on
- Poor fuel economy
- Rough running engine
Common causes
- Faulty wide-band oxygen sensor
- Open or corroded sensor wiring
- Damaged sensor connector
- PCM circuit fault
Diagnostic steps
- Scan and record O2 sensor data
- Inspect sensor wiring and connector
- Test sensor circuit continuity
- Replace O2 sensor if faulty
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