Join Now
International Automotive Technicians Network

P0131 Diagnostic Trouble Code Discussion for March 2007

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
2003 Chevrolet Trailblazer North Face 4.2L MIL Lamp on VIN: 1GNET16SX3
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. this vehicle was towed in with no power. started with the basic checks, fuel pressure ok. checked exhaust for restrictions, no restrictions. scan for codes came up with the codes lised above. checked o2 operation , operates fine. checked for misfire, no fault ...
March 26, 2007
2003 Chevrolet Trailblazer North Face 4.2L MIL Lamp on VIN: 1GNET16SX3
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. this vehicle was towed in with no power. started with the basic checks, fuel pressure ok. checked exhaust for restrictions, no restrictions. scan for codes came up with the codes lised above. checked o2 operation , operates fine. checked for misfire, no fault ...
March 26, 2007