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P0140 Diagnostic Trouble Code Discussion for October 2009

Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity

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Trouble Ticket Help Requests for DTC P0140
Help Request Posted
1998 Volvo S70 2.4L MIL Lamp on VIN: YV1LS557W1
P0140: bk 1 sensor 2 no activity. Hi guys! car comes in for exhaust leak,cat broken off at neck,replace converter,ck engine light comes on po133 and po140.as far as we know there were no previous problems.both oxygen sensors were replaced the front sensor seems to be OK rear sensor will not re...
October 15, 2009