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P0131 Diagnostic Trouble Code Discussion for September 2009

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
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: IGNDS13S34
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. ... diving Miss Daisy to use cuss words I never even heard before!!! The fuel pressure is steady 57 @ idle, and 50@ cruise!!! The fuel trim goes very hi on cruise (20 st and 27 lt), and sets codes for rich and lean system. Also sets code p1133 O2 not switching...
September 18, 2009
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: IGNDS13S34
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. ... diving Miss Daisy to use cuss words I never even heard before!!! The fuel pressure is steady 57 @ idle, and 50@ cruise!!! The fuel trim goes very hi on cruise (20 st and 27 lt), and sets codes for rich and lean system. Also sets code p1133 O2 not switching...
September 21, 2009
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: IGNDS13S34
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. ... diving Miss Daisy to use cuss words I never even heard before!!! The fuel pressure is steady 57 @ idle, and 50@ cruise!!! The fuel trim goes very hi on cruise (20 st and 27 lt), and sets codes for rich and lean system. Also sets code p1133 O2 not switching...
September 18, 2009
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: IGNDS13S34
P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. ... diving Miss Daisy to use cuss words I never even heard before!!! The fuel pressure is steady 57 @ idle, and 50@ cruise!!! The fuel trim goes very hi on cruise (20 st and 27 lt), and sets codes for rich and lean system. Also sets code p1133 O2 not switching...
September 21, 2009