1997 Geo Prizm P0141 O2 Sensor Code After Exhaust Replacement

Model: 1997 Geo Prizm Fault Code: P0141 Posted: 2016-01-30 11:21

After installing a complete new exhaust system on my 1997 Geo Prizm, the vehicle began displaying DTC P0141 — Oxygen Sensor Heater Performance (Bank 1, Sensor 2). I'm wondering if this code is related to the new exhaust setup. Could there be an issue with the sensor heating or a misalignment in the exhaust system? What diagnostic steps should I take to identify the root cause?