Posts Tagged: what’s wrong with oxygen sensor
P0136: What it means and how to fix it
Learn about trouble code P0136, what it means, and how to diagnose and fix it. When that dreaded check engine light pops up on your dashboard, it’s never a good sign. One of the common trouble codes that could appear is the P0136 trouble code. If you’ve scanned your vehicle and received this code, it means there’s an issue with the O2 sensor heater circuit in Bank 1, Sensor 2. This sensor plays a crucial role in monitoring your vehicle’s emissions and ensuring your engine runs efficiently. In this guide, … Read More
P0135: What it means and how to fix it
Learn about trouble code P0135, what it means, and how to diagnose and fix it. P0135 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1). This sensor is located on the engine bank that houses the #1 cylinder and is located BEFORE the catalytic converter When you turn the ignition switch to RUN, the vehicle provides to the heater circuit of the oxygen sensor. The oxygen sensor heater is a critical part of the vehicle’s emission system because it brings the oxygen sensor up to operating temperature much faster than … Read More
P0134: What it means and how to fix it
Learn what a P0134 code means and how to fix it A P0134 trouble code is defined as Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1). This oxygen sensor is located on the engine bank that houses the #1 cylinder and is located BEFORE the catalytic converter In older Zirconia oxygen sensors, the PCM expects to see a rapidly changing voltage varying from .1 volts to .95 volts. A Zirconia sensor generates its own voltage based on the difference in oxygen levels between what it sees in the … Read More
P0133: What it means and how to fix it
Learn what a P0133 code means and how to diagnose and fix it A P0133 trouble code is defined as: “Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1).” Bank #1 is the portion of the engine that houses cylinder #1. Sensor 1 is the sensor located BEFORE the catalytic converter. The PCM expects to see a rapidly changing value from this sensor, a value that corresponds to the rapidly changing air/fuel mixture. When it doesn’t see rapid switching, it sets a P0133 code. The PCM sends a reference voltage … Read More
P0132 trouble code
Learn what a P0132 trouble code is and how to fix it P0132 trouble code O2 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 … Read More
P0131: What it means and how to fix it
Learn what a P0131 code means and how to fix it A P0131 code is defined as: “Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 1).” This sensor is located on the engine bank that houses the #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 constantly low voltage, … Read More