Can 02sensor cause trouble code po125?

Yes, a faulty oxygen sensor can potentially contribute to trouble code P0125, which indicates insufficient coolant temperature for closed-loop operation. If the oxygen sensor is malfunctioning, it may not provide accurate data to the engine control module, leading to improper fuel mixture adjustments and affecting engine temperature readings. However, P0125 is primarily related to the coolant temperature sensor or thermostat issues, so it's essential to diagnose the problem thoroughly.