O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
The engine computer found a problem with the heater in the oxygen sensor after the catalytic converter on bank 1. This heater helps the sensor warm up quickly so the engine can control emissions correctly. The car may run normally, but the problem should be fixed soon.
You can usually drive short term, but emissions may increase and fuel economy may be slightly worse. If the check engine light is flashing or the vehicle runs poorly, stop driving and diagnose it immediately.
P0141 is set when the powertrain control module detects an electrical fault in the heater circuit of the downstream oxygen sensor on bank 1, sensor 2. The heater element may be open, shorted, not receiving power, or not being commanded correctly. This code usually affects emissions readiness and catalyst monitoring more than drivability.
It is the downstream oxygen sensor on bank 1, usually located after the catalytic converter.
Usually not much. It mainly affects emissions monitoring and readiness, but it can cause a check engine light and failed inspection.
No. The code will return if the heater circuit problem is still present.