Rick's Free Auto Repair Advice


Fix code P0132

Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 1). This sensor is located on the engine bank that houses #1 cylinder and is located BEFORE the catalytic converter

The PCM sends a reference voltage (usually 5-volts) to the variable resistor in the oxygen sensor and looks for a return voltage. Once the sensor is heated up, the PCM expects to see a varying voltage. If the PCM sees a constant high, it will set a trouble code P0132.

Most common causes are: leaking fuel injector that’s causing an excessive rich condition that can’t be controlled by the PCM, bad oxygen sensor, short from the heater circuit into the sensing circuit. .

oxygen sensor, P0130

oxygen sensor wire colors

To learn how to replace an oxygen sensor, click here


© 2012 Rick Muscoplat

Posted on by Rick Muscoplat

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