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P0140 Diagnostic Trouble Code Discussion for May 2005

Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity

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Trouble Ticket Help Requests for DTC P0140
Help Request Posted
2003 Chevrolet Silverado 2500 6.0L MIL Lamp on VIN: 1GCHC29U03
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. hey guys here's one I'm stumped on. code po140 recurring. have replaced 02 (bank 1 sensor 2) vehicle does have a slight intermittent miss on cylinder 1 and 2 (more 1 than 2). O2 will vary but only from 0-532. even at a raised idle. will not go higher while all...
May 12, 2005