They are made of zirconium oxide, a chemical compound used to form the sensor’s thermal-driven electrochemical fuel cell.
One of the toughest components to sell as a maintenance item, or even a replacement item, is an oxygen sensor.
EGR systems put a small amount of inert gas into the combustion chamber to control the temperatures.
When oxygen sensors are tested, manufacturers will introduce small amounts of oil to measure sensitivity.
One of the problems with ethanol is how it reacts to water in the air and in the tank.
If an O2 sensor is not reading properly or is borderline, it should be replaced regardless of its age or mileage.
The DPF is designed to store the soot and ash, to later burn them off during a regeneration cycle.
Just like a DPF, a gasoline particulate filter (GPF) traps and stores soot particles in the exhaust stream.
As miles accumulate, O2 sensors effectively “catch a cold,” meaning they can’t breathe like they should.
Reducing emissions to acceptable levels is achieved through a four-stage process.
To begin, an internal combustion engine creates heat energy by igniting a mixture of gasoline and atmospheric oxygen with a high-voltage spark.
It is not that the repair itself is overly complicated; it is the paperwork, laws and warranty issues that can be the real headache.