This will show you how easy it is to change out your o2 sensors in your vehicles. Just go to Autozone. They can run a free computer dignostics check. they will tell you what the problem is. Buy the part from them and you are good to go. You will need a special oxygen sensor socket. You can buy it at autozone. Or at Harbor freights (cheaper). (in my case the socket just would not work. i had to use a old fashion wrench) Turn the vehicle on for about 5 minutes. Let the exhaust get nice and hot. Spray some wd-40 on the oxygen sensor fitting. let it set for a minute or so and start working it loose. Repeat the process for stubborn oxygen sensors. once removed. attach the wires. disconnect the battery for about 5 to 10 minutes. this should void your check engine light. Oxygen sensors are important. they help with your gas mileage. The goal of the sensor is to help the engine run as efficiently as possible and also to produce as few emissions as possible. When the oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing. Your car performs poorly and uses more fuel than it needs to.
