Cars that have a faulty oxygen sensor will commonly have a poor idle, jerk erratically at a steady throttle or emit a rotten egg odor from the exhaust pipe. If a car has a bad or broken oxygen sensor, this will cause the car to operate less efficiently, causing other problems like the car being difficult to start, its "check engine" warning light coming on or an abnormally high rate of fuel consumption.Continue Reading
Oxygen sensors are very important because they monitor the exhaust of the engine, so if they break, more pollutants can be released into the atmosphere. This can also easily cause the engine to run into serious problems, including a compromised catalytic converter.
When oxygen sensors go bad, they can be costly to repair at an auto shop, but they can be replaced more cheaply by doing the repairs personally. These parts can be ordered online through standard retailers and can be installed with just a few simple tools. A heavy-duty low profile O2 socket is recommended for installation because it is durable and can reach the difficult angles necessary to replace oxygen sensors. It is also recommended that the car owner should refer frequently to the owner's manual for their car so they understand what they are doing.Learn more about Car Parts & Maintenance
Although the exact causes vary depending on the type of vehicle, the most common cause of the check engine light coming on is a faulty oxygen sensor. A loose gas cap also causes the check engine light to turn on, so owners should check this first.Full Answer >
One of the most common symptoms of a bad throttle body, or throttle position sensor, according to Reference, is when the car either hesitates to accelerate or stumbles during acceleration. If there seems to be just a bit of a delay between the time you push on the gas pedal and the time it takes for the car to go, a bad throttle body could be the cause.Full Answer >
An OBD II error code PO171 means that the oxygen sensor located in bank one is producing too much oxygen in the car's exhaust system. Additionally, this error code indicates that the powertrain and engine control module are unable to regulate the proper ratio of fuel to air.Full Answer >
Engine code P0171 means that an oxygen sensor in a vehicle’s engine has detected too much oxygen in the exhaust. It is often caused by intake air leaks, faulty fuel injectors and exhaust gas leaks.Full Answer >