Code result
P2629
O2 Sensor Pumping Current Trim Circuit / Open Bank 2 Sensor 1
Moderate severity
What it means
The wide-band trim resistor circuit on bank 2 sensor 1 is open. Air-fuel feedback for bank 2 cannot be calibrated, fuel control runs degraded.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Open calibration trim resistor
highOne of the most commonly reported causes for this code — check this first.
Open sensor connector pin
mediumA plausible cause — test and verify before replacing parts.
Related help
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