What causes engine code p0138-oxygen sensor voltage?
Once the oxygen sensor stops performing as intended, the vehicle computer detects that and turns on the Check Engine light. This will usually have a diagnostic trouble code (DTC) of P0138. Typically, you’d take the vehicle into the shop, where they’d diagnose the issue and replace the oxygen sensor for you.
What is the error code for O2 oxygen sensor?
Error Code P0138: O2 Oxygen Sensor Circuit High Voltage Bank 1, Sensor 2. Error code P0138 is described as O2 Oxygen Sensor Circuit High Voltage Bank 1, Sensor 2. This indicates there is a failure to have a low voltage output below 1.2 volts or a time period of more than 10 seconds, which signifies no oxygen in the exhaust.
What does p0138 mean in a catalytic converter?
O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) What Does P0138 Mean? Oxygen sensor 2 is the downstream oxygen sensor in relationship to the catalytic converter. It measures the amount of air and fuel coming out of the catalytic converter to ensure the catalytic converter is functioning properly.
What does high voltage mean on O2 sensor?
The high voltage condition from the O2 sensor is indicating a lack of oxygen in the exhaust or other related problems, such as a leaking fuel injector or a broken up catalyst inside. Need help with a P0138 code?
What does the code p0138 mean on the O2 sensor?
What the P0138 code means. P0138 is the OBD-II generic code indicating the O2 sensor for bank 1 sensor 2 fails to have a lower voltage output below 1.2 volts for more than 10 seconds indicating a lack of oxygen in the exhaust stream.
The high voltage condition from the O2 sensor is indicating a lack of oxygen in the exhaust or other related problems, such as a leaking fuel injector or a broken up catalyst inside. Need help with a P0138 code?
When does the O2 sensor turn on the Check Engine light?
The engine control module (ECM) sees the voltage of the O2 sensor for bank 1 sensor 2 above 1.2 volts when the ECM has commanded the fuel to a targeted lean condition on that bank of the engine. The ECM detects the voltage high problem and turns on the Check Engine Light.
What causes the p0138 code on a Dodge Ram?
Here are the most common issues that cause the P0138 code in the Dodge Ram. They are presented in order (somewhat) of most to least likely to cause the problem. Bad Oxygen Sensor – The O2 sensor itself is one of the most likely reasons that P0138 is triggering your service engine soon light.
Once the oxygen sensor stops performing as intended, the vehicle computer detects that and turns on the Check Engine light. This will usually have a diagnostic trouble code (DTC) of P0138. Typically, you’d take the vehicle into the shop, where they’d diagnose the issue and replace the oxygen sensor for you.
O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) What Does P0138 Mean? Oxygen sensor 2 is the downstream oxygen sensor in relationship to the catalytic converter. It measures the amount of air and fuel coming out of the catalytic converter to ensure the catalytic converter is functioning properly.
Can a ScanGauge reset a VSC warning light?
Scangauge cannot read these error codes, nor reset this light. It would appear that regen braking, traction control, and posibly some anti rollover control is dissabled if this warning light is on. So it is both fuel inneficient and possibly dangerous to drive with this light on.
What does the VSC warning light say on a Toyota?
Turn car to ON, you should see the message “VSC DIAG”.It will read “VSC DIAG OK” if there are no codes. Brake warning lights will go off for 4s, then start to flash. Count the flashes, these are the error codes that caused the light to come on.