× 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

P2270 Diagnostic Trouble Code Discussion for September 2012

Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Biased Lean

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 P2270
Help Request Posted
2006 Mazda Tribute S 3.0L MIL Lamp on VIN: 4F2YZ04186
P2270: Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Lean. ... only CODE: P2270: HO2S sensor signal stuck lean Bank 1 sensor 2, datalog O2S12 was dead, no signal @ all, replace new O2S, test drive vehicle and monitor HO2S all working good, return vehicle to customer. 3 months late vehicle come back in same CODE ( no o...
September 17, 2012