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P0140 Diagnostic Trouble Code Discussion for August 2004

Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity


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Trouble Ticket Help Requests for DTC P0140
Help Request Posted
1997 Kia Sportage 2.0L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: KNDJB7236V
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) No Activity Detected. Number 4 spark plug had a carbon track, replaed plugs, coils and wires with Kia parts. That fixed PO304 code. Egr valve would not hold vacuum, replaced it with a Kia part. Then I had a rough idle, EGR driver in PCM is not pulling control circuit down so EGR v...
August 19, 2004
1997 Kia Sportage 2.0L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: KNDJB7236V
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) No Activity Detected. Number 4 spark plug had a carbon track, replaed plugs, coils and wires with Kia parts. That fixed PO304 code. Egr valve would not hold vacuum, replaced it with a Kia part. Then I had a rough idle, EGR driver in PCM is not pulling control circuit down so EGR v...
August 19, 2004