P0139 Diagnostic Trouble Code Discussion for August 2004
Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response
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| Help Request | Posted | |
| 1997 Kia Sportage 2.0L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: KNDJB7236V P0139: Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response. 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 |
