Join Now
International Automotive Technicians Network

P0151 Diagnostic Trouble Code Discussion for August 2013

Air Fuel Sensor (Bank 2 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 P0151
Help Request Posted
2001 Chevrolet Suburban 1500 5.3L Cuts out, MIL Lamp on VIN: 3GNFK16T71
P0151: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage. This suburban will accelerate fine up to 25 miles per hour, then cuts out. At 25 mph the RPMs drop and will not accelerate. If I feather the throttle lightly I can get it up to 60 mph. Any ideas on what this may be? Thanks
August 26, 2013
2001 Chevrolet Suburban 1500 5.3L Cuts out, MIL Lamp on VIN: 3GNFK16T71
P0151: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage. This suburban will accelerate fine up to 25 miles per hour, then cuts out. At 25 mph the RPMs drop and will not accelerate. If I feather the throttle lightly I can get it up to 60 mph. Any ideas on what this may be? Thanks
August 26, 2013