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P0130 is the OBD-II generic code describing an issue with the bank 1, oxygen sensor 1 (HO2S B1 S1). It indicates that the engine computer (ECM) is not detecting proper activity from the sensor.

The onboard diagnostic (OBD) code P0136 is defined as an Oxygen Sensor Circuit Low Voltage in Bank 1, Sensor 2. ... The ECM (Engine Control Module) monitors the oxygen sensor's voltage and determines if the exhaust is running lean or rich.

On 1996 and newer vehicles that have OnBoard Diagnostics II (OBDII), there is a "catalyst monitor" that keeps an eye on the operating efficiency of the converter. A second oxygen sensor is mounted "downstream" or behind the converter to compare oxygen levels in the exhaust before and after the converter.

Oxygen Sensor Identification Therefore, in an in-line 4-cylinder engine, the term "Bank 1, Sensor 1" simply refers to the front oxygen sensor. "Bank 1, Sensor 2" is the rear oxygen sensor. A V6 or V8 engine has two banks (or two parts of that "V").

Clean the MAF sensor. ... Inspect all vacuum and PCV hoses, replace/repair as required. Inspect all hoses and connections in the air intake system. Inspect and/or test the intake manifold gaskets for leakage. Check for a dirty fuel filter and proper fuel pressure.

The P0130 code is triggered when the Engine Control Module (ECM) fails to properly detect activity from the O2 sensor. The O2 sensor transmits a voltage in relation to the amount of oxygen in the exhaust. ... The value of .1 means the engine is running lean and has too much air and not enough fuel.

P0131 means the O2 oxygen sensor's voltage remained low for longer than 2 minutes. This, is interpreted by the ECM as a low voltage condition and sets the MIL. Bank 1 Sensor 1 is located in front of the catalytic converter.

The sensor sends the voltage signal back to the PCM. The low voltage signal means lean air fuel mixture, or too much oxygen and too little fuel. The high voltage signal means rich air fuel mixture. The code P0131 is set when the signal voltage from the front O2 sensor is stuck low.

Some manufacturers may assign the left side of the engine as Bank 1 and the right as Bank 2. The best way to determine which side is Bank 1 or Bank 2 is to check the vehicle's service manual. On most vehicles, Bank 1 is referring to the side of the engine where the #1 cylinder is located.

P0130 is the OBD-II generic code describing an issue with the bank 1, oxygen sensor 1 (HO2S B1 S1). It indicates that the engine computer (ECM) is not detecting proper activity from the sensor. This will cause your ECM to turn a light on and change engine management strategies which will affect fuel economy.

An oxygen sensor will typically generate up to about 0.9 volts when the fuel mixture is rich and there is little unburned oxygen in the exhaust. When the mixture is lean, the sensor's output voltage will drop down to about 0.1 volts.

Confirm P0131 is present with a scan tool. ... Perform a visual inspection of the bank 1 sensor 1 wiring replacing or repairing any wiring that is found to be faulty. Check voltage and resistance of bank 1 sensor 1. If necessary replace the oxygen sensor bank 1 sensor 1 with a new sensor.

Check the PCV hoses and vacuums for damages, replace components if necessary. Clean the MAF sensor. ... Check the fuel lines for cracks, pinches or leaks. Inspect the fuel pressure at the fuel rail. Inspect the fuel injectors for dirt. ... Inspect the exhaust leak located before the first O2 sensor.

Usually a replacement of the oxygen sensor will fix the P0133 code. At times the sensor itself will not be causing the code P0133, so a technician must check for other faults such as vacuum leaks, a dirty mass air flow sensor, or leaks in the exhaust system.

P0133 indicates the ECM senses that the O2 Sensor is not changing its voltage output quickly enough to the changing air-fuel ratio. Hence why the P0133 trouble code definition is O2 sensor circuit slow response because the circuit is not reacting quickly enough.