| On most all gasoline powered cars and trucks | | | | the oxygen level coming out of the exhaust and |
| manufactured since the late 1970's there is a very | | | | sends a signal to the vehicles computer that will in |
| small yet very important part that is located in the | | | | turn send a signal to the fuel injectors, telling them to |
| exhaust stream, known as the Oxygen Sensor. It is | | | | pulse more fuel to go richer, or to pulse less fuel and |
| commonly referred to by automotive technicians as | | | | go leaner. It simply makes sure that your engine is |
| the O2 Sensor. This little part looks like a spark plug | | | | attaining complete combustion of the fuel by |
| in a way, as it is threaded on one end, but it has a | | | | maintaining a 14.7:1 air to fuel ratio. When this |
| wire with a connector on the end opposite the | | | | happens the only thing that should come out of your |
| threaded end. The threaded end is screwed directly | | | | tailpipe is Oxygen and Water, which are the only |
| into the exhaust stream on the engine side of the | | | | byproducts of complete combustion. |
| catalytic converter. | | | | Whether you are a novice mechanic that likes to |
| This little component is the most neglected part on | | | | change your own parts, or you're the type of person |
| most vehicles, and is responsible for a myriad of | | | | that has a mechanic that takes care of your issues, |
| engine performance and drivability issues, as well as | | | | do not overlook this inexpensive part. And if your |
| poor gas mileage when it goes bad. If you own a | | | | gas mileage isn't what it used to be, or your engine |
| gasoline powered vehicle and you know that this little | | | | surges and hesitates, change the O2 Sensor whether |
| gem has not been changed in the last 40,000 miles, | | | | your think it's bad or not before you do any other |
| no matter what make or model you have, just | | | | expensive diagnostic testing, because 9 times out of |
| change it. You'll be glad you did. | | | | 10 it will fix your problem. Be sure to change the oil |
| The Oxygen Sensor is the heart and soul of all | | | | right after installing a new O2 Sensor, as if the |
| computerized fuel delivery systems. The Oxygen | | | | sensor was bad and the engine was running rich, then |
| Sensor does just what its name states, it senses the | | | | your crankcase will surely have a lot of fuel mixed |
| oxygen content in your engines exhaust. It measures | | | | with the oil. |