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P0139 Diagnostic Trouble Code Discussion for August 2008

Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response

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Trouble Ticket Help Requests for DTC P0139
Help Request Posted
2001 Hyundai Elantra GLS 2.0L MIL Lamp on VIN: KMHDN45D31
P0139: B1 S2 ckt slow response. ... same code. One of which I have in the shop right now. This particular vehicle has given us a P0139 before manifold replacement (Hyundai cat. of course). Thinking readings were off because of exhaust leak, clear codes and send him on his way. Car came back,...
August 06, 2008