Feature

●??Cautions: Please check your vehicle fitment carefully in the product description to avoid any wrong purchase. Please check your part pictures with our pictures, especially the plug, it must be completely same. Or it will not fit your car
●??Application: Marsflex Oxygen Sensor 234-9009 fit for Toyota 1997-1999 Avalon XLS/XL 1998 Camry CE 1998-2000 Camry LE/XLE 1999-2000 Sienna CE/LE/XLE 1999-2000 Solara SE/SLE 2001-2003 Highlander Limited/Base, Lexus 1998-1999 ES300 Base, 1999-2003 RX300 Base
●??Advantage: Made of high-quality materials, strong durability, to ensure service life, Marsflex O2 Sensor can improve engine performance and fuel economy,extend Catalytic Converter life
●??Easy Installation: Total length 16 inch. Manufactured to OE specification fit form and function, durable and easy installation
●??Warranty: 1-YEAR WARRANTY. ALL Marsflex oxygen sensors are extensively tested during manufacturing to guarantee quality, reliability, and above all, always meet or exceed the original equipment specifications


Description

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What is the life expectancy of an oxygen sensor?

Heated oxygen sensors should be checked or replaced every 60,000 miles, while unheated oxygen sensors should be checked or replaced every 30,000 miles

Do I need to replace all of the sensors at once?

It is best to replace O2 sensors in pairs. Because, replacing one sensor will cause the ECU to set a code for the other sensors. This is because the new sensor switching activity is much faster than that of the older aged sensors

The oxygen sensor will not come out.

If you are using an open end wrench, try an O2 socket. If this fails, try a long ratchet or breaker bar in conjunction with your socket to generate more torque. After the sensor is removed, be sure to use a thread cleaner to clean up the bung threads

Why does the fault code still exist after replacing the oxygen sensor?

1 Oxygen sensor circuit failure

2 The mixture is too rich

3 The mixture is too lean

4 The three-way catalytic converter is damaged or fails

5 Damaged ECM

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