P0152O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)

The engine computer saw the voltage from the upstream oxygen sensor on bank 2 stay too high. A high reading usually means the sensor is reporting a constantly rich (too much fuel) condition, or the signal wire is shorted. This sensor helps the computer set the correct air-fuel mix on that bank.

Ամենատարածված պատճառներն են՝ Failed or contaminated upstream O2 sensor on bank 2, Wiring short (signal wire shorted to voltage) or connector fault, Actual rich running condition (leaking injector, high fuel pressure), Coolant or oil contamination of the sensor, Corroded or loose sensor connector, ECM/PCM fault (rare)։

Սովորաբար անվտանգ է կարճ տարածությունների վրա վարել, սակայն շուտով ստուգել տվեք։

Short trips are generally okay, but have it checked soon because a steady rich mixture wastes fuel and can damage the catalytic converter over time. A technician should confirm whether it is a sensor, wiring, or a true rich-running fault before replacing parts.