P2626 - O2 SENSOR PUMPING CURRENT TRIM CIRCUIT / OPEN BANK 1 SENSOR 1
POST UPDATED IN January, 2023
Description of DTC code P2626 Generic
The DTC P2626 OBDII relates to the Oxygen Sensor pump current compensation circuit. This code is set when the PCM detects a malfunction in the O2 Sensor number 1 circuit.
The Oxygen (O2) sensors assist in monitoring the amount of oxygen that is not burned in the exhaust once it comes out of the engine. The PCM (Powertrain Control Module) uses the signals from these sensors to determine the levels of oxygen in the exhaust. These readings are used to adjust the air/fuel mixture.