What is the problem code for the oxygen sensor?

The diagnostic trouble codes (DTCs) lighting up the CEL usually are: P0131 Upstream Heated Oxygen Sensor (HO2S11) Circuit Out Of Range Low Voltage (Bank 1). P0132 Upstream Heated Oxygen Sensor (HO2S11) Circuit High Voltage (Bank 1, Sensor 1).

What is the voltage of the O2 sensor?

The voltages that the O2 sensor produces, in a Lean condition, range between 0.050 to 0.500 Volts (any voltage under 0.500 Volts is considered a Lean condition). When the PCM sees this Lean condition, it starts to inject more fuel.

Where is the oxygen sensor in a car?

This bad boy is located before the catalytic converter and is known as O2S11 which means: Oxygen Sensor Bank 1 Sensor 1. What does the O2 sensor do? Well, in a nutshell, the job of the upstream oxygen sensor is to report back to the PCM (Powertrain Control Module = fuel injection Computer) whether it’s injecting too much fuel or not enough.

What happens if the upstream oxygen sensor fails?

If the upstream oxygen sensor has failed, one of the most obvious symptoms besides the check engine light (CEL) being on, is really bad gas mileage. In this article, I’ll show you how to test the oxygen sensor (commonly known as the O2 sensor) without having to replace if first to see if it’s good or bad.

P0153: Upstream Heated Oxygen Sensor (HO2S11) Circuit Slow Response (Bank 2). This diagnostic trouble code (DTC) is letting you know that the upstream oxygen sensor for Bank 2 is switching between a Rich and Lean condition very slowly (lazily).

How to test the oxygen sensors in Ford 4.6L?

P0131 Upstream Heated Oxygen Sensor (HO2S11) Circuit Out Of Range Low Voltage (Bank 1). P0133 Upstream Heated Oxygen Sensor (HO2S11) Circuit Slow Response (Bank 1). P0151 Upstream Heated Oxygen Sensor (HO2S21) Circuit Out Of Range Low Voltage (Bank 2). P0153 Upstream Heated Oxygen Sensor (HO2S21) Circuit Slow Response (Bank 2).

What does DTC p0131 mean on oxygen sensor?

P0131: Upstream Heated Oxygen Sensor (HO2S11) Circuit Out Of Range Low Voltage (Bank 1). This diagnostic trouble code (DTC) indicates that the upstream oxygen sensor for Bank 1, is producing a negative voltage (somewhere between 0 and -1 Volts [negative 1 V]).

What does DTC mean for bank 2 oxygen sensor?

This diagnostic trouble code (DTC) is letting you know that the upstream oxygen sensor for Bank 2 is switching between a Rich and Lean condition very slowly (lazily). This DTC usually indicates that the oxygen sensor (O2S21) is too old and ready to retire. With the help of this test article, you’ll easily be able to confirm if this is the case.

What happens when an O2 sensor goes bad in a Ford Expedition?

Oxygen sensors play a vital role in both engine management and emissions control. When an O2 (oxygen) sensor go bad, it’ll cause your Ford Expedition ‘s engine to run less efficiently. Your Expedition can exhibit symptoms when the Oxygen sensor has gone bad. Or, it may exhibit none at all.

What is the p0136 Ford heated oxygen sensor 2?

P0136 Ford Description The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) must be maintained near the ideal stoichiometric ratio.

What is the problem code for the oxygen sensor?