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P0139 Diagnostic Trouble Code Discussion for June 2013

Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response

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Trouble Ticket Help Requests for DTC P0139
Help Request Posted
2006 Audi A4 2.0L Excessive Emissions, MIL Lamp on, Unresponsive Turbo VIN: WAUAF78E26
P0139: Oxygen Lambda Sensor B1 S2 Response too Slow. ... technicians! A customer had her car towed in to my shop with a no-start condition. Upon inspection I found that the timing chain in the rear of the cylinder head had broke off. The customer and I agreed on replacing the head with a re-manufactured one from...
June 11, 2013