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P0131 Diagnostic Trouble Code Discussion for November 2005

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


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Trouble Ticket Help Requests for DTC P0131
Help Request Posted
1998 Chevrolet Blazer 4.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNT13W4W2
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. Truck came in codes PO171, PO131,PO300, PO1870, and running rough. Found bank 1 sensor 1 dead and all plugs on that bank black. Replaced HO2S and did a major tune-up truck ran great. Came back 1 week later HO2 sensor dead again and plugs fouled. Replaced HO2S ...
November 14, 2005
1998 Chevrolet Blazer 4.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNT13W4W2
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. Truck came in codes PO171, PO131,PO300, PO1870, and running rough. Found bank 1 sensor 1 dead and all plugs on that bank black. Replaced HO2S and did a major tune-up truck ran great. Came back 1 week later HO2 sensor dead again and plugs fouled. Replaced HO2S ...
November 15, 2005
1998 Chevrolet Blazer 4.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNT13W4W2
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. Truck came in codes PO171, PO131,PO300, PO1870, and running rough. Found bank 1 sensor 1 dead and all plugs on that bank black. Replaced HO2S and did a major tune-up truck ran great. Came back 1 week later HO2 sensor dead again and plugs fouled. Replaced HO2S ...
November 14, 2005
1998 Chevrolet Blazer 4.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNT13W4W2
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. Truck came in codes PO171, PO131,PO300, PO1870, and running rough. Found bank 1 sensor 1 dead and all plugs on that bank black. Replaced HO2S and did a major tune-up truck ran great. Came back 1 week later HO2 sensor dead again and plugs fouled. Replaced HO2S ...
November 15, 2005