× 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

P0139 Diagnostic Trouble Code Discussion for December 2021

Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response


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 P0139
Help Request Posted
2009 Honda Fit 1.5L Excessive Emissions, Poor Idle Quality, Misfire VIN: JHMGE87209
P0139: 02 sensor slow response b2s2. Towed in customer sates car has been to another shop and is not fixed. Car runs rough, has no power and check engine light flashing. Has new B1 and B2 sensors, new MAF sensor and new air filter. Customer cant recall ever doing a valve adjustment. P0301-4, ...
December 23, 2021