Code result
P2626
O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1
Moderate severity
What it means
The ECU detects an open in the pumping current trim circuit of the wide-band oxygen sensor on bank 1 sensor 1. Without trim correction, the lambda value reported by the sensor is not accurate.
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
Trim wire open
highOne of the most commonly reported causes for this code — check this first.
Internal sensor fault
mediumA plausible cause — test and verify before replacing parts.
Pin pushed back out of connector body
lowLess common, but worth ruling out after the more likely causes.
Related help
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