× 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

P1131 Diagnostic Trouble Code Discussion for April 2010

Heated Oxygen Sensor (Bank 1 Sensor 1) Indicates A/F Ratio Too 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 P1131
Help Request Posted
2001 Ford Explorer Sport 4.0L MIL Lamp on VIN: 1FMYU60E31
P1131: lack of o2 switching b1s1 system lean. i smoked the car and found the intake leaking and repaired tat and the codes came back after a test drive has anyone seen this before oh yea another shop has tried to fix this
April 08, 2010
2001 Ford Explorer Sport 4.0L MIL Lamp on VIN: 1FMYU60E31
P1131: lack of o2 switching b1s1 system lean. i smoked the car and found the intake leaking and repaired tat and the codes came back after a test drive has anyone seen this before oh yea another shop has tried to fix this
April 09, 2010