The Nissan oxygen sensor is a sensitive and important part found in the exhaust system, where it needs to be located to perform its tasks, as it works best in higher temperatures. Although the Nissan oxygen sensor is found in the proximity of the exhaust system, it affects the combustion system. Measuring the amount of oxygen in the exhaust, the Nissan oxygen sensor signals the main computer of the vehicle if the percentage of oxygen is too high, which indicates that the air-to-fuel ratio is off, so that the computer can adjust the ratio to produce a more efficient burn. The quality of burn is important not only to making your fuel dollar go further or your engine work more efficiently, but also to the environment. When the fuel is not burned properly, pollutants are released into the environment. The Nissan oxygen sensor helps to prevent this. If the Nissan oxygen sensor should fail, then the main computer is not receiving the information it needs to adjust the air-to-fuel ratio correctly and usually will provide a default ratio that tends to be rich, or fuel heavy. Replacing your Nissan oxygen sensor is not difficult, nor is it expensive. We offer a full selection of Nissan oxygen sensor replacements, covering a broad range of years and models, and you'll easily find the right one for your vehicle. When you're ready to place your Nissan oxygen sensor order you can do so online or by dialing our toll-free telephone number. When your Nissan oxygen sensor arrives, you'll be able to install it easily, with tools that are found in almost any basic home too set.
A Six-Step Guide to Installing Your New Nissan Oxygen Sensor
Your Nissan oxygen sensor is an integral part of your vehicle, so if it's broken, your car can't perform optimally. The first indication that your oxygen sensor is problematic is when the “Check Engine” light in your car is on. Of course, that light may blink for other reasons, too, so in order to make certain that your oxygen sensor is really the cause of the problem, use a handheld diagnostic reader to scan your exhaust system. Typically, your car has two to four sensors. The reader can tell which of those sensors are faulty. Once you've found the damaged sensor, replace it immediately by following this six-step guide.
Required skill level: Intermediate
Needed tools and materials:
- 22-mm wrench (oxygen sensor removal tool)
- New oxygen filter
- Tape measure
- Wire cutter
- Wire stripper
Removing the old sensor
Disconnect your Nissan oxygen sensor from the harness of your vehicle. Use a 22-mm wrench or oxygen sensor removal tool for this purpose. You can find the oxygen sensor in the manifold or exhaust pipe.
Examining the old sensor
Check if the old sensor has special clips or grommets attached to it. If it does, cut the harness of the old sensor in such a way that it incorporates the special clips and grommets. Take the new oxygen sensor and place it beside the old one. Cut the wires of the new sensor to the same length as that of the old one. Just make sure that you're cutting no less than five inches.
If the length of your old sensor from the hex face to the connector housing is no more than 29 ½ inches, cut four inches from the end of the connector. After which, lay the new sensor beside the old one and cut the former to match the length of the latter.
Matching the wire ends
Strip about three-eights of wire insulation from the wire ends of both sensors. Make sure that you're taking out only the insulation and not the wires themselves. Using the Wire Color Reference Table, connect the wire ends of both sensors. If you're not sure about how to do this, consult a professional. When you're done with this step, place a connector cap over the wires of the old sensor. For the new sensor, install a connector body. Put a wire seal over each wire so the uncovered end of the seal is opposite the connector cap and body. Check if the wires are aligned before you proceed to the next step.
Inserting wires into the Posi-Lock connector
Take a wire from the new oxygen sensor and insert it into the male end of the Posi-Lock connector. Maintain slight pressure while pushing back the male end into the Posi-Lock barrel. Execute the same procedure to the rest of the wires of the new oxygen sensor.
Linking the connector wire harnesses together
Again, refer to the Wire Color Reference Table to know which wire harnesses should go together. Hold the wires in each side of the Posi-Lock connector and give them a nice tug to ensure that they are properly assembled. After which, slightly shove the wire seals against the Posi-Lock connector, then insert both the seals and the connector into the connector body. Push the connector cap into the body until it is set into place.
Finalizing the procedure
Take out the protective cap from your new Nissan oxygen sensor then place it back to the vehicle. Remember to put the wires strategically away from other components that may cause them to heat up or get damaged. Use clips and grommets from the old sensor's wire harness to keep the wires in place.