Join Now
International Automotive Technicians Network

P0140 Diagnostic Trouble Code Discussion for February 2006

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
2001 Chevrolet Silverado 1500 5.3L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1GCEK14T81
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. Truck came in with code P0140 changed b1s2 o2 sensor. came back soon after with codes as above. Checked cat converter for pluged Clean and Clear, could not find vacuum leak at intake with carb clean. Plugs all look good. Missfire monitor 1,3,5,7. Sometimes idl...
February 08, 2006
2001 Chevrolet Silverado 1500 5.3L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1GCEK14T81
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. Truck came in with code P0140 changed b1s2 o2 sensor. came back soon after with codes as above. Checked cat converter for pluged Clean and Clear, could not find vacuum leak at intake with carb clean. Plugs all look good. Missfire monitor 1,3,5,7. Sometimes idl...
February 08, 2006