NGK OZA642-EE15-90572 Oxygen Sensor 90572 Total Length 575mm

【NGK OZA642-EE15-90572 Oxygen Sensor 90572 Total Length 575mm O2】
■ Product Description
NTK O2 Sensor that detects the ideal air-fuel ratio
Advanced control is required to reduce harmful substances (HC, CO, NOx) in exhaust gas, and the O2 sensor plays an important role in detecting the oxygen concentration in the exhaust gas and feeding it back to the ECU*1.
The NTK O2 sensor detects the oxygen concentration in the exhaust gas and feeds it back to the ECU so that the air-fuel mixture ratio (air-fuel ratio) becomes the optimal stoichiometric air-fuel ratio "λ (lambda) = 1*2." The ECU uses signals from the O2 sensor to control the engine near the stoichiometric air-fuel ratio, where harmful substances in the exhaust gas are most effectively purified, by enriching the fuel if it is lean and leaning it if it is rich relative to the stoichiometric air-fuel ratio. In this way, the NTK O2 sensor is an important component in reducing harmful substances in exhaust gas.

Specifications
【Features and Structure】
Zirconia elements have the characteristic of generating electromotive force due to differences in oxygen concentration at temperatures exceeding 300°C. Utilizing this characteristic, zirconia-type sensors detect the difference in oxygen concentration between the inside and outside of the element (atmosphere and exhaust gas) and feed back to the ECU whether the fuel is rich or lean relative to the stoichiometric air-fuel ratio.
Wide-range air-fuel ratio sensors can detect how rich or lean the air-fuel ratio is relative to the stoichiometric air-fuel ratio. Therefore, more precise engine control is possible than with zirconia O2 sensors. It also enables engine control outside the stoichiometric air-fuel ratio (λ=1), such as lean burn control. In addition, there are early-activation wide-range air-fuel ratio sensors that maintain the characteristics of conventional wide-range air-fuel ratio sensors while improving heat resistance and durability, and achieve early activation (start operating within 5 seconds after the engine key is turned ON) through an integrated element and heater structure.
【Need for Replacement】
O2 sensors are constantly exposed to exhaust gas exceeding 600°C and operate in a very harsh environment where combustion products adhere to them.
Using a deteriorated or damaged O2 sensor can lead to various problems.
Over 5 years or 80,000 km since new*
*May vary depending on vehicle usage.
Total length: 575mm
Total length is the length from the gasket to the tip of the connector.
Heat shields and other parts are attached; do not remove them, and use as is.
Compatible manufacturer: Toyota
Compatible genuine part number: 89465-30730

■ Image Notes
*Images are for illustrative purposes only. They include products of different sizes and colors. Product designs and specifications may change without notice. Please be aware.

■ Precautions
O2 sensors are designed for specific vehicle models and engines and are not interchangeable with other types.
(1) Always turn off the engine before inspecting, replacing, or adjusting.
(2) Inspect and replace according to the service manual of each automobile manufacturer.
(3) Use the correct O2 sensor part number listed in this document.
(4) May not function properly if used in modified vehicles, etc.
(5) Be careful not to drop or subject the sensor to impact, as the internal ceramic element may break.
(6) Anti-seize compound is applied to the threaded part of the sensor. To prevent dirt from adhering,
remove the protective cap just before installing the sensor.
(7) Do not wipe off the anti-seize compound.
(8) If anti-seize compound gets on your hands or other body parts, wash it off immediately with water.
⑨ Do not twist or bend the lead wire fixed to the main body.
⑩ Do not use an impact wrench when installing the sensor.
(11) When installing the sensor, screw it in by hand and then tighten it with a wrench to the following tightening torque as a guideline.
【Part numbers starting with "LZA", "OZA", "OZR", "UAR"】:
Sensors with 18mm thread diameter, 1.5mm pitch, 22mm hex = approx. 45-55 N・m (4.5-5.5 kgf・m)
(12) Do not allow the lead wires or connectors to touch the exhaust manifold or other hot parts.
(13) Route the lead wires in the same way as the original and securely attach the connector.
(14) Depending on the condition of your vehicle, replacing only the O2 sensor may not resolve the problem.
(15) When the MIL illuminates, before (or after) replacing the sensor, follow the service manual, etc.,
and be sure to clear (reset) the diagnostic (self-diagnosis/OBD) error code.
Failure to clear the error code may lead to problems such as the MIL not turning off.