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P0139 Diagnostic Trouble Code Discussion for March 2010

Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response

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Trouble Ticket Help Requests for DTC P0139
Help Request Posted
2005 Honda Accord LX 2.4L MIL Lamp on VIN: 3HGCM56415
P0139: Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response. ... on, P0139 O2 sensor slow to respond Bank 1 Sensor 2. Checked circuits and scoped signal, was slow to respond, replaced with Honda Sensor. Retested ok. Came back today, same code, only everything retests just fine! What am I missing? Heater circuit and grou...
March 08, 2010