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Lambda Sensor - Denso - DOX-0287

Lambda Sensor - Denso - DOX-0287

This Denso DOX-0287 Lambda Sensor is a direct fit OE part designed to provide a perfect fuel mixtu...

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Brand New Genuine Denso Post-Cat Lambda, Oxygen Sensor for Toyota Avensis 03-08

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eBayBrand New Genuine Denso Post-Cat Lambda, Oxygen Sensor for Toyota Avensis 03-08
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Product Information

Full details

This Denso DOX-0287 Lambda Sensor is designed for vehicle owners seeking to maintain optimal engine performance and reduce emissions. It provides a perfect fuel mixture generation, ensures the catalytic converter works efficiently, and helps keep fuel consumption low. A potential caveat is the need for careful compatibility verification before purchase, as variants are common. This direct-fit OE part is a single, 4-wire, 655mm exhaust O2 oxygen probe.

All features

Model Part NumberDOX-0287
BrandDenso

Extended Product Information

FAQs

What is a Lambda Sensor?

A Lambda Sensor, also known as an oxygen sensor, measures the amount of unburned oxygen in the exhaust gases. This data is used by the vehicle's engine control unit (ECU) to optimize the fuel-air mixture for efficient combustion, reduced emissions, and optimal fuel economy.

Why is the Denso DOX-0287 part number important?

The part number is critical for ensuring you are purchasing the correct sensor for your vehicle. Using an incorrect part can lead to poor performance, emissions issues, or damage to the engine or emissions system. Always verify fitment.

How long does a Lambda Sensor typically last?

The lifespan of a lambda sensor can vary greatly depending on driving conditions, vehicle maintenance, and the quality of the sensor itself. Generally, they can last anywhere from 60,000 to 100,000 miles, but they can fail prematurely due to contamination or extreme conditions.

What are the signs of a failing Lambda Sensor?

Common signs include a illuminated Check Engine Light, rough engine idle, decreased fuel economy, poor acceleration, and increased exhaust emissions.

Can I install the Denso DOX-0287 myself?

Installation is possible for those with automotive experience and the correct tools. However, due to the sensitive nature of the sensor and its placement in the exhaust system, professional installation by a qualified mechanic is often recommended to ensure proper fitment and function.

What is the difference between a 4-wire and other types of lambda sensors?

A 4-wire lambda sensor typically includes two wires for the signal and two wires for the heater element. The heater helps the sensor reach its optimal operating temperature faster, allowing the ECU to receive accurate readings sooner after startup, which improves emissions control during cold starts.

What does 'Direct Fit OE Part' mean?

It means the part is designed to be a direct replacement for the original equipment (OE) part installed by the vehicle manufacturer. It should match the original in form, fit, and function.

Troubleshooting

Check Engine Light (CEL) remains on after installation

Ensure the sensor is correctly installed and the electrical connector is securely fastened. Clear the diagnostic trouble codes (DTCs) from the ECU. If the light persists, re-verify sensor compatibility or consider other potential exhaust or engine system issues.

Poor engine performance or rough idle

Verify the sensor is functioning correctly by checking live data with a diagnostic scanner. Ensure there are no exhaust leaks before or after the sensor. Confirm the sensor is the correct part number for the vehicle.

Increased fuel consumption

A faulty or incorrectly installed lambda sensor can lead to inefficient fuel-air mixtures. Confirm proper installation and function. Check for other factors affecting fuel economy such as tire pressure, driving habits, or other engine maintenance needs.

Pros and Cons

Pros

  • Ensures optimal fuel mixture for better engine performance.
  • Helps reduce harmful exhaust emissions.
  • Contributes to lower fuel consumption.
  • Designed as a direct fit OE replacement part.
  • Aids in the longevity of the catalytic converter.

Cons

  • Requires careful compatibility verification before purchase.
  • Installation may require specific tools or automotive knowledge.
  • As a single sensor, it is part of a larger emissions control system.

Setup, Compatibility & Care

Compatibility Verification:

Before purchasing the Denso DOX-0287 Lambda Sensor, it is crucial to verify compatibility with your specific vehicle. Use the provided compatibility guide and double-check all vehicle information. Given that variants are common, it is highly recommended to contact the seller prior to purchase if you are unsure about fitment.

Installation:

Installation of a lambda sensor typically involves:

  1. Locating the old sensor in the exhaust system.
  2. Disconnecting the electrical connector.
  3. Carefully unscrewing the old sensor (it may be tight due to heat and corrosion).
  4. Applying a small amount of anti-seize compound (if recommended by the vehicle manufacturer) to the threads of the new sensor.
  5. Screwing in the new Denso DOX-0287 sensor.
  6. Connecting the electrical connector.

It is advisable to consult your vehicle's service manual or a qualified mechanic for precise installation procedures, as it may vary by make and model. Specialized tools may be required.

Care:

Lambda sensors are sensitive components. Avoid spraying harsh cleaning chemicals directly onto the sensor or its wiring. Contamination from oil, fuel additives, or exhaust leaks can damage the sensor. Ensure that any engine work performed does not introduce contaminants into the exhaust stream near the sensor.

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