NGK OZA644-EJ1-92546 Oxygen Sensor 92546 Total Length 380mm

【NGK OZA644-EJ1-92546 Oxygen Sensor 92546 Total length 380mm 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 the O2 sensor plays an important role in detecting the oxygen concentration in exhaust gases 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 the signal from the O2 sensor to control the fuel mixture around the stoichiometric air-fuel ratio, where harmful substances in the exhaust gas are most effectively purified. If the fuel mixture is too rich compared to the stoichiometric air-fuel ratio, the ECU leans out the fuel; if it's too lean, the ECU enriches the fuel. In this way, the NTK O2 sensor is an important component in reducing harmful substances in exhaust gases.

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 mixture is rich or lean relative to the stoichiometric air-fuel ratio.
Wideband air-fuel ratio sensors can detect how rich or lean the mixture is relative to the stoichiometric air-fuel ratio. This allows for more precise engine control than with zirconia O2 sensors. It also enables engine control outside of the stoichiometric air-fuel ratio (λ=1), such as lean burn control. Furthermore, there are early-activation wideband air-fuel ratio sensors that maintain the characteristics of conventional wideband 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.
【Necessity of Replacement】
O2 sensors are constantly exposed to exhaust gases exceeding 600°C and accumulate combustion byproducts, operating in a very harsh environment.
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: 380mm
Total length is the length from the gasket to the tip of the connector.
Compatible Manufacturer: Suzuki
Compatible Genuine Part Number: 18213-50M10

■Notes on Images
*Images are for illustration purposes only. Includes products with 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 stop the engine before inspecting, replacing, or adjusting.
(2) Perform inspection and replacement according to the service manual of each automobile manufacturer.
(3) Use an O2 sensor with the correct part number as specified in this document.
(4) May not function correctly if used in modified vehicles.
(5) Be careful as dropping or impacting the sensor may cause the internal ceramic element to break.
(6) Anti-seize compound is applied to the threaded part of the sensor. To prevent dust from adhering,
remove the protective cap immediately 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 wires 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, then use a wrench to tighten it to the following approximate torque:
【Part numbers starting with "LZA", "OZA", "OZR", "UAR"】:
Sensor with thread diameter 18mm, pitch 1.5mm, Hex 22mm = approx. 45-55 N・m (4.5-5.5 kgf・m)
(12) Do not allow the lead wires or connector 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 firmly attach the connector.
(14) Depending on the condition of the 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 always erase (reset) the error code from the diagnostic (self-diagnosis/OBD) system.
Failure to erase the error code may lead to problems such as the MIL not turning off.