NGK OZA745-EE2-93186 Oxygen Sensor 93186 Total length 250mm

【NGK OZA745-EE2-93186 Oxygen Sensor 93186 Total Length 250mm O2】
■ Product Description
NTK O2 Sensor for Detecting Ideal Air-Fuel Ratio
Advanced control is required to reduce harmful substances (HC, CO, NOx) in exhaust gases, and O2 sensors play an important role in detecting the oxygen concentration in the exhaust gas and feeding it back to the ECU*1.
NTK O2 sensors detect the oxygen concentration in the exhaust gas and feed it back to the ECU so that the fuel-air mixture ratio (air-fuel ratio) becomes the optimal stoichiometric air-fuel ratio "λ (lambda) = 1*2." When the ECU receives a signal from the O2 sensor indicating that the fuel is rich relative to the stoichiometric air-fuel ratio, it thins the fuel. When the fuel is lean, it enriches the fuel, thereby controlling the engine near the stoichiometric air-fuel ratio, which most effectively purifies harmful substances in the exhaust gas. Thus, NTK O2 sensors are crucial components for reducing harmful substances in exhaust gases.

Specifications
【Features and Structure】
Zirconia elements have the property of generating electromotive force due to differences in oxygen concentration at temperatures exceeding 300°C. Utilizing this property, 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. This is a characteristic of zirconia type sensors.
Wide-range air-fuel ratio sensors can detect how rich or lean the mixture 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 (operation starts within 5 seconds after the engine key is turned ON) through an integrated structure of the element and heater.
【Necessity of Replacement】
O2 sensors are constantly exposed to exhaust gases exceeding 600°C, and combustion products adhere to them, operating in a very harsh environment.
Using a deteriorated or damaged O2 sensor can lead to various problems.
More than 5 years or 80,000 km since new*
* Varies depending on vehicle usage conditions.
Total length: 250mm
Total length is the length from the gasket to the tip of the connector.
Compatible Manufacturer: Daihatsu
Compatible OEM Part Number: 89465-97404

■ Notes on Images
* The image is for illustration purposes only. It includes products with different sizes and colors. Product designs and specifications may change without notice. Please be aware of this.

■ Precautions
O2 sensors are designed specifically for each vehicle model and engine, so they are not interchangeable with other types.
(1) Always stop the engine before inspecting, replacing, or adjusting.
(2) Perform inspection and replacement according to the service manual of each automobile manufacturer.
(3) Use the correct O2 sensor part number as specified in this document.
(4) If used in modified vehicles, it may not function normally.
(5) Be careful as dropping or impacting the sensor may cause the internal ceramic element to crack.
(6) Anti-seize compound is applied to the threaded part of the sensor. To prevent adhesion of dirt, etc.,
remove the protective cap just before installing the sensor.
(7) Do not wipe off the anti-seize compound.
(8) If the anti-seize compound gets on your hands or other parts of your body, 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 with your fingertips, then use a wrench to tighten it to the following approximate torque:
【Part numbers starting with "LZA", "OZA", "OZR", "UAR"】:
Sensors with thread diameter 18mm, pitch 1.5mm, Hex 22mm = approximately 45-55 N·m (4.5-5.5 kgf·m)
(12) Do not allow lead wires or connectors to come into contact with 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 the O2 sensor alone may not resolve the problem.
(15) When the MIL illuminates, before (or after) replacing the sensor, follow the service manual, etc., and
always clear (reset) the diagnostic (self-diagnosis/OBD) error codes.
Failure to clear the error codes may lead to problems such as the MIL not turning off.