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P0131 Diagnostic Trouble Code Discussion for November 2014

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
1997 Chevrolet K3500 5.7L No Start, Hard start VIN: 1GBHK33R1V
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. Vehicle came in with a long crank/hard start cold. put fuel pressure gauge on first thing in the morning and pressure was good. did drop to about 5o psi when first cranking.its not weather related. truck has starting problem regaurdless of temp. cam retard was...
November 18, 2014