× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0140 Diagnostic Trouble Code Discussion for February 2005

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
1996 Chevrolet Lumina 3.1L MIL Lamp on VIN: 2G1WL52M3T
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. costumer does not notice any drivablity issues,only check engine lamp comes on driving intermittently
February 09, 2005
1999 Volkswagen Jetta GLS 2.0L MIL Lamp on VIN: 3VWSA29M6X
P0140: O2 sensor no activity detected. Daughters car, I am able to scan for these codes but dont have any diagnostic manuals for VW. I do remember from past repairs that replacing the O2 to correct these codes is not always the answer. Any and all help will be greatly appreciated!
February 15, 2005