Why is the O2 sensor on my Honda Accord not working?
Bad Oxygen Sensor – The O2 sensor itself is one of the most likely reasons that P0139 is triggering your service engine soon light. Although it is a temptation to replace it right away, it wouldn’t hurt to check out the wiring harness around it beforehand. See directly below.
Why does the Check Engine light come on on Honda Accord?
Oxygen sensors can change the way that your Accord’s engine runs. Most of the time, the check engine light will come on. It’s a good thing that the check engine light would come on, as there is more than one oxygen sensor, and they can be difficult to get to and test.
What is the OBDII code on a Honda Accord?
P0139 is a common OBDII code that occurs in many vehicles, including the Honda Accord. The code is triggered when there is an issue with the response time from the oxygen (O2) sensor when switching voltage levels.
Why does my Honda Accord have a p0139 code?
Here are the most common issues that cause the P0139 code in the Honda Accord. 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 P0139 is triggering your service engine soon light.
Bad Oxygen Sensor – The O2 sensor itself is one of the most likely reasons that P0139 is triggering your service engine soon light. Although it is a temptation to replace it right away, it wouldn’t hurt to check out the wiring harness around it beforehand. See directly below.
Oxygen sensors can change the way that your Accord’s engine runs. Most of the time, the check engine light will come on. It’s a good thing that the check engine light would come on, as there is more than one oxygen sensor, and they can be difficult to get to and test.
P0139 is a common OBDII code that occurs in many vehicles, including the Honda Accord. The code is triggered when there is an issue with the response time from the oxygen (O2) sensor when switching voltage levels.
Here are the most common issues that cause the P0139 code in the Honda Accord. 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 P0139 is triggering your service engine soon light.
How to check for O2 sensor trouble code?
Common mistakes when diagnosing the P0135 code 1 Not checking the O2 wire harness for water entry into the harness cover 2 Not checking the O2 sensor for oil or other contaminants 3 Not scanning the new O2 sensor to make sure the heater circuit works 4 Replacing parts before conducting thorough pinpoint tests and visual checks
How does the oxygen sensor on an accord work?
Accord oxygen sensors work with your engine’s feedback system to determine the perfect ratio of fuel to air. When they malfunction, your car produces more emissions and loses gas mileage and may be the reason your Check Engine Light is on.
Can a bad O2 sensor cause an illuminated check engine light?
Faulty O2 sensors are a common cause of illuminated Check Engine Lights. Still, because the light may indicate a variety of other problems, it is important to watch for bad O2 sensor symptoms. If you notice any, repairing the problem as quickly as possible is a good idea to prevent further trouble.
How to check and replace an oxygen sensor ( air )?
A P1155 or P1135 code indicates you have a bad sensor. This is common in Toyota and Lexus cars and trucks. Learn how to test the air fuel ratio sensor to see if it is bad, and then learn how to replace the bad sensor. Nice O2 Sensor Socket Kit: http://www.amazon.com/gp/product/B005…