P0134 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
OBD-II Trouble Code Technical Description
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
What does that mean?
This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make/model.
This code refers to the front oxygen sensor on Bank 1. Basically the oxygen sensor is inactive. Here’s why:
The powertrain control module (PCM) provides a baseline voltage of about 450 mV on the oxygen sensor signal circuit. When cold, the PCM detects the the internal resistance of the sensor is high. As the sensor warms up the resistance is lowered and it starts producing voltage based on the oxygen content in the exhaust. When the PCM determines that the time it took for the sensor to warm up is greater than one minute or that the voltage is inactive (not reading outside 391-491 mV it views the sensor as inactive or open and sets the P0134 code.
Potential Symptoms
One or more of the following may occur:
Causes
A code P0134 may mean that one or more of the following has happened:
Possible Solutions
The most common fix is to replace the oxygen sensor. But that doesn’t rule out the possibility of:
Need help?
Let us fix your problem. You are most welcome our diagnosis experts have in most cases the knowledge and skills to find the cause of the error code p0134 and to solve the problems.
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"Delete Error Code Permanently, Disable DTC Error Code Function for p0134 in the ECU"
In extreme cases, we even have the option to permanently remove the specific DTC p0134 and disable the function of the specific error code in the ECU. All other fault code functions will then continue to work to protect the engine. This is different from clearing an error code with a diagnostic device. We have the option to permanently remove the function of the specific error code, so that it never comes back. Also emergency running that occurs on the specific error code can be solved in most cases.
Of course we prefer to first try to solve the cause of the error code, but sometimes the only solution is to permanently disable the DTC function of p0134.
