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

Will this oxygen sensor work with my vehicle?

Marsflex oxygen sensor is consistent with OEM, please refer to the page information for compatibility information. You can check 'Amazon confirmed it' for confirmation, or provide us with your vehicle information and we will confirm it for you.

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Marsflex Air Fuel Ratio O2 Oxygen Sensor Upstream 234-9042 Compatible with Toyota Camry Sienna Solara Highlander Lexus RX350 RX400h ES330 ES300 Replacment 89467-06040 89467-0E030

Marsflex Air Fuel Ratio O2 Oxygen Sensor Upstream 234-9042 Compatible with Toyota Camry Sienna Solara Highlander Lexus RX350 RX400h ES330 ES300 Replacment 89467-06040 89467-0E030

Product ID: 547520524

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Details

Brand
Marsflex
Item dimensions L x W x H
15 x 5.5 x 5.5
Item Weight
4 Ounces
Style
Oxygen Sensor
Current Rating
6 Amps

⚡15W power for efficient sensing

⏱️Fast 18-second response time

🌡️Operates up to 930°C high-temp tolerance

Description

🚗 Tune your ride like a pro — never miss a beat with Marsflex precision!

DURABLE HIGH TEMP DESIGN - Built to withstand extreme heat up to 930°C for long-lasting reliability.
TRUSTED QUALITY WARRANTY - Backed by 1-year warranty and rigorous testing for peace of mind.
PRECISION ENGINE OPTIMIZATION - Enhance fuel economy & engine performance with accurate air-fuel ratio sensing.
SEAMLESS OE FIT EASY INSTALL - Exact OEM specs and plug compatibility ensure hassle-free, perfect fitment.
EXTENDED CATALYTIC CONVERTER LIFE - Protect your vehicle’s emissions system and reduce costly repairs.

The Marsflex Air Fuel Ratio O2 Oxygen Sensor 234-9042 is a high-quality, OE-spec replacement sensor compatible with select Toyota and Lexus V6 models. Designed for durability and precision, it operates reliably up to 930°C, delivers fast 18-second response times, and improves engine efficiency while extending catalytic converter life. Easy to install with exact plug fitment and backed by a 1-year warranty, it’s the smart upgrade for performance-conscious drivers.

Specifications

Brand	Marsflex
Item dimensions L x W x H	15 x 5.5 x 5.5 Centimeters
Item Weight	4 Ounces
Style	Oxygen Sensor
Current Rating	6 Amps
Lower Temperature Rating	150 Degrees Celsius
Maximum Supply Voltage	12 Volts
Measurement Accuracy	Go & No-go Gauge
Measuring Range	λ=0.6- ∞
Mounting Type	Flange Mount
Output Type	analog
Response Time	18 Seconds
Sensing Distance	1000 Millimetres
Specific Uses For Product	Oxygen Sensor
Upper Temperature Rating	930 Degrees Celsius
Manufacturer	Marsmotor
Country of Origin	USA
Model number	APEL14055
Number of Memory Sticks	1
Item Weight	113 g
Product Dimensions	15.01 x 5.51 x 5.51 cm; 113.4 g
Item model number	APEL14055
Item Height	2.17 Inches
Item Width	2.17 Inches
Wattage	15 Watts
Included Components	1. 234-9042 Air Fuel Ratio O2 Oxygen Sensor 2. Oxygen Sensor Instruction Manual
Are batteries included?	No

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