Join Now
International Automotive Technicians Network

P0140 Diagnostic Trouble Code Discussion for November 2004

Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0140
Help Request Posted
1997 Chevrolet Cavalier 2.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 3G1JF5245Y
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. This came in with compaint of Had Coolant Flush done NOW it runs poorly.. scan & found two codes.4 gas readings real high - repaired rear o2 connection , repaired pcv leak.. Then I was at the ecm (in rf facia under rf fender well)to start checking ecm grou...
November 09, 2004
2002 GMC Sierra 2500 SL 6.0L Long crank time VIN: 1GTGK29U32
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. Hi Group, Sorry in advance for the long post. This GMC truck has presented a real chalenge. I starts fine cold, and will start fine hot immediatly after it is shut off, but if left to sit for 10 min or longer it will crank for at least 5-10 seconds before sta...
November 30, 2004
1997 Chevrolet Cavalier 2.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 3G1JF5245Y
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. This came in with compaint of Had Coolant Flush done NOW it runs poorly.. scan & found two codes.4 gas readings real high - repaired rear o2 connection , repaired pcv leak.. Then I was at the ecm (in rf facia under rf fender well)to start checking ecm grou...
November 09, 2004
2002 GMC Sierra 2500 SL 6.0L Long crank time VIN: 1GTGK29U32
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. Hi Group, Sorry in advance for the long post. This GMC truck has presented a real chalenge. I starts fine cold, and will start fine hot immediatly after it is shut off, but if left to sit for 10 min or longer it will crank for at least 5-10 seconds before sta...
November 30, 2004