How to fix a P0141 Heater Circuit Sensor 2 on a 1996 Oldsmobile?

Answer 1

I've read that this code might be a downstream O2 sensor. Possibly on the passenger side and pre-catalytic converter.

Answer 2

To fix a P0141 error code related to the oxygen sensor heater circuit on a 1996 Oldsmobile, you can first check the wiring and connections related to the sensor. If those are fine, then the oxygen sensor itself might need to be replaced. It's important to use a quality replacement sensor compatible with your vehicle to ensure proper function.