Function:

The function of the oxygen sensor is to determine the information about whether there is excess oxygen in the exhaust after the engine burns, that is, the oxygen content, and convert the oxygen content into a voltage signal and transmit it to the engine computer, so that the engine can realize the closed-loop control with the excess air factor as the target; to ensure; The three-way catalytic converter has the greatest conversion efficiency for the three pollutants of hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NOX) in the exhaust gas, and maximizes the conversion and purification of emission pollutants .

Package Included:

1x New Oxygen Sensor

Fits For:

For Acura

• 1995-1999 Acura NSX 3.0L  Downstream Rear
• 1997-1999 Acura NSX 3.2L  Downstream Rear

For Honda

• 2001-2005 Honda Civic 1.7L  Downstream
• 1996-1997 Honda Odyssey 2.2L Downstream
• 1998 Honda Odyssey 2.3L   Downstream
• 1997-2001 Honda Prelude 2.2L  Downstream

For Isuzu

• 1996-1997 Isuzu Oasis 2.2L  Downstream
• 1998-1999 Isuzu Oasis 2.3L  Downstream

Installation Location:

Upstream, Downstream, Sensor 1, Sensor 2

Cleaning Method:

1. Remove the oxygen sensor and use 5-10% ferric chloride solution to add excess hydrochloric acid. The ratio depends on the surface of the sensor head. Soak the oxygen sensor in the solution, take it out after 10-15 minutes, rinse with water, not only the four surrounding holes should be unobstructed, but from the bottom, the carrier inside is white after washing.
2. If the cleaning is not satisfactory, continue this work until the white carrier can be seen.
3. After rinsing with water, install the sensor and repeat the fourth step of the measurement. Generally speaking, as long as it is not a sensor from a subsidiary factory, as long as the internal porcelain body does not burst, and the heating resistor does not open, the oxygen sensor that has been cleaned above can return to normal operation.

Q & A:

How to Removing the Old Sensor?
1.Locate the oxygen sensor underneath the hood or vehicle. Look for a part that looks like a spark plug with a thick, black cable coming out of it. The first sensor will always be next to the motor in the engine compartment. It will be on the exhaust pipe leading from the motor toward the back of the vehicle. Most cars these days also have a second sensor behind the catalytic converter, which looks like a metal cylinder on the exhaust line and is found right behind the front wheels.
2.Disconnect the electrical connection to the oxygen sensor. Follow the cable away from the end of the sensor plugged into the exhaust line. It will end in a plastic plug inserted into an outlet. To remove it, locate the small tab on the end of the plug. While pushing the tab down, pull the plug back by hand.
3.Spray some penetrating oil onto the sensor to loosen it. Worn-out sensors can be tough to remove, but a good penetrating oil helps ensure they come out. Add the lubricant to the opening where the sensor plugs into the exhaust line. Wait about 10 minutes for the oil to soak in before trying to unscrew the sensor. You may need to apply the oil a few times before you are able to get the sensor out.
4.Unscrew the oxygen sensor using a ratchet wrench. The easiest way to detach the sensor is by using a 3⁄8 in (0.95 cm) ratchet wrench fit with a 7⁄8 in (2.2 cm) oxygen sensor socket. If you don’t have one, try using an open end wrench. Fit the wrench over the sensor where it plugs into the exhaust line. Turn it counterclockwise to loosen it, and then finish unscrewing it by hand.

How to Installing the New Sensor?
1.Select a new oxygen sensor that is the same as the old one. Use the make and model of your car to find the correct oxygen sensor. Make sure the new sensor is the same size and shape as the old one.
2.Add a small amount of anti-seize to the new sensor. New sensors come packed with a bag of bronze gel. You may be wondering what that strange goo is at first, but it’s a very important lubricant. Cut open the bag, then use a glove or clean rag to spread a small amount of the lubricant onto the new sensor’s threads. The threads are the grooves in the metal ring near the tip of the sensor.
3.Turn the sensor clockwise to secure it on the exhaust line. Fit the tip of the sensor into the hole on the exhaust line. Make sure it is centered and goes in smoothly as you begin rotating it clockwise by hand. Once it is tightly in place, use an oxygen sensor socket or open end wrench to give it a final turn.
4.Plug the electrical connector back into the vehicle. Modern oxygen sensors come equipped with a connected electrical cable, so you don’t have to do any additional work. The cable will be hanging from the free end of the sensor. Plug it into the outlet port close to the exhaust line.
5.Start the car to see if the problem is fixed. The new sensor makes a big difference. It causes your vehicle to burn fuel more efficiently, It sounds better, runs more smoothly, and uses less fuel. If the check engine light was on, it most likely will turn off as well. Take the car out on the road to make sure it stays off.
（If the check engine light comes back on, either the oxygen sensor wasn’t installed correctly or your vehicle has another problem.）

Notes:

If the oxygen sensor has no signal output or the output signal is abnormal, the engine fuel consumption and exhaust pollution will increase, and there will be malfunctions such as unstable idling, misfire, and surging.