Mazda 6 P0153: Oxygen Sensor Slow Response (Bank 2 – Sensor 1)

    P0153 is a common OBDII code that occurs in many vehicles, including the Mazda 6. The code is triggered when there is an issue with the response time from the O2 sensor when switching voltage levels. The Oxygen sensor is responsible for helping the ECM monitor oxygen levels in the exhaust in order to … Read more

Mazda 6 P0139: O2 Sensor Slow Response (Bank 1 – Sensor 2)

P0139 is a common OBDII code that occurs in many vehicles, including the Mazda 6. The code is triggered when there is an issue with the response time from the oxygen (O2) sensor when switching voltage levels. The Oxygen sensors are responsible for helping the ECM meter oxygen levels in the exhaust, and helping to … Read more

Mazda 6 P0140: O2 Sensor → No Activity Detected B1S2

P0140 is a generic OBDII trouble code. It has the same meaning for any vehicle with OBDII, including the Mazda 6. It means that the PCM/ECM is not detecting any activity from the sensor.  It doesn’t mean that the O2 sensor isn’t getting power, but that the voltage isn’t changing, which is the “no activity”. … Read more

Mazda 6 P0137: O2 Sensor Low Voltage (Bank 1 -Sensor 2)

  P0137 is a fairly common OBDII code that occurs in the Mazda 6, it’s a general code.  This means that it has the same meaning for any vehicle. This code is supposed to let you know that there is an issue with the wiring or harness going to the sensor, or the sensor itself is … Read more

Mazda 6 P0151 Code: Meaning, Causes, How to Fix

The P0151 code is an OBD-II diagnostic trouble code that indicates low voltage in the Mazda 6’s Oxygen (O2) sensor circuit located at Bank 2, Sensor 1 (B2S1). The B2S1 O2 sensor plays a crucial role in maintaining optimal engine performance by detecting the air-fuel ratio in the exhaust, then sending this data to the … Read more

Mazda 6 P0134: O2 Sensor → No Activity Detected B1S1

P0134 is a relatively common OBDII trouble code. It’s generic, which means that it has the same meaning for any vehicle with OBDII. It means that the PCM/ECM is not detecting any activity from the sensor.   P0134 Definition P0134: O2 Sensor → No Activity Detected →Bank 1 Sensor 1 The 6’s computer uses the … Read more

Mazda 6 P0403:EGR→ Circuit Malfunction

P0403 is a very common trouble code. It is a generic code, which means that it has the same meaning for the Mazda 6 as it would any other vehicle. It affects the EGR (Exhaust Gas Recirculation System and technically means: P0403: EGR→ Circuit Malfunction A circuit malfunction implies that there is a wiring problem … Read more

Mazda 6 P0150: O2 Sensor Circuit Malfunction (Bank 2 -Sensor 1)

P0150 is a very common OBDII code that occurs in the Mazda 6. It is typically caused when the Oxygen Sensor voltage is not within normal operating conditions. Mazda 6 P0150 Symptoms Typically, the only symptom of P0150 is going to be the service engine soon light. In some cases, there can be other symptoms … Read more