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P0140 Diagnostic Trouble Code Discussion for June 2015

Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity

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Trouble Ticket Help Requests for DTC P0140
Help Request Posted
1997 Chevrolet K2500 Suburban LS 5.7L Cuts out, Misfire VIN: 3GNGK26R4V
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. Hello All. Got a customers vehicle that he came in asking for a exhaust leak repair and rear O2S replacement. Repaired his his exhaust leak at the converter flange before the post O2S and replaced the B1S2 sensor. Costumer has a complaint of rough idle and mis...
June 25, 2015