× 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

P0131 Diagnostic Trouble Code Discussion for March 2009

Air Fuel Sensor (Bank 1 Sensor 1) Circuit Low Input (Lean Shift)

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 P0131
Help Request Posted
1998 GMC C3500 Sierra SL 7.4L Excessive Emissions, MIL Lamp on VIN: 1GDKC34J8W
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. this truck is working me over it sets many o2 codes but will set p0137 on decel from interstate checked power and grounds and all seems well. bank one sensor 1 will drop to 0 mv on decel from highway speeds plese help any advise would be great
March 04, 2009
2004 Mazda MPV LX 3.0L Poor Idle Quality, MIL Lamp on VIN: JM3LW28A14
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Input (No Inversion). car surges at idle. mil on after 2 days. seems like fan control module is going out (causes fan to fluctuate erratically) using a Solis the o2 sensors are doing nothing. Autozone sold customer new o2 sensors. I am a VW Audi tech and it has been a long time sin...
March 04, 2009