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P0131 Diagnostic Trouble Code Discussion for July 2012

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
1999 Chevrolet Express 3500 LS 5.7L Poor Fuel Economy, Low power VIN: 1GAHG39RXX
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. Engine runs smooth with no misfire of hesitation, always starts right up. When rev'd it remains smooth but feels restricted (hence replacing the converters). Road test leaves you feeling less than satisfied as it struggles to reach speed limits in town. Codes ...
July 05, 2012
1999 Chevrolet Express 3500 LS 5.7L Poor Fuel Economy, Low power VIN: 1GAHG39RXX
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. Engine runs smooth with no misfire of hesitation, always starts right up. When rev'd it remains smooth but feels restricted (hence replacing the converters). Road test leaves you feeling less than satisfied as it struggles to reach speed limits in town. Codes ...
July 05, 2012