Lambda Sensor - Denso - DOX-0276

Genuine Denso Lambda Sensor, part number DOX-0276. This oxygen sensor features a 4-pin connector, ...

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Product Information

Full details

This Denso DOX-0276 Lambda Sensor is designed for vehicle owners and mechanics seeking a reliable replacement oxygen sensor. Its key benefit is ensuring optimal fuel mixture, leading to improved fuel efficiency and reduced emissions. A potential caveat is the need to verify exact vehicle compatibility before purchase. This sensor features a 4-pin connector, a 490mm cable length, and a pre-greased M18x1.5 threaded for easy installation. It is a direct-fit, heated, finger-type switching sensor.

All features

Model Part NumberDOX-0276
BrandDenso

Extended Product Information

FAQs

What does a Lambda sensor do?

A Lambda sensor (oxygen sensor) measures the amount of oxygen in your vehicle's exhaust gases. This data is sent to the engine control unit (ECU) to help regulate the fuel-air mixture for optimal combustion, efficiency, and reduced emissions.

How do I know if my Lambda sensor needs replacing?

Common signs include a Check Engine Light illuminated on your dashboard, decreased fuel economy, rough idling, poor acceleration, and failed emissions tests.

Is this a universal part?

No, this is a direct-fit replacement sensor (DOX-0276) designed for specific vehicle applications. It is essential to verify compatibility using the vehicle fitment tool before purchasing.

What does 'heated' mean for a Lambda sensor?

A heated Lambda sensor has an internal heating element that brings it to its optimal operating temperature faster after the engine starts. This allows it to provide accurate readings to the ECU much sooner, improving emissions control from cold starts.

Can I install this sensor myself?

Yes, if you have basic automotive repair knowledge and the necessary tools (like an oxygen sensor socket wrench), you can install it yourself. However, if you are unsure, it is recommended to have a professional mechanic perform the installation.

What is the cable length of this sensor?

The cable length for the Denso DOX-0276 Lambda Sensor is 490mm.

What are the cross-reference part numbers?

This Denso DOX-0276 is equivalent to OE 8946552060 and cross-references with BLUE PRINT ADT37057, BOSCH 0 258 986 713, and other Denso part numbers like 065500-7644, 234000-6090, 234000-6091, 234000-6092, 234000-6093.

Troubleshooting

Check Engine Light remains on after installation

Ensure the sensor is fully seated and the electrical connector is secure. Clear the DTCs again with an OBD-II scanner. If the light persists, verify the sensor is the correct part for the vehicle and check for other potential exhaust or engine system issues.

Poor engine performance or fuel economy has not improved

Confirm the sensor was installed correctly and is the right part. Check for exhaust leaks before the sensor, as these can affect readings. Ensure other engine components (e.g., mass airflow sensor, spark plugs) are in good condition.

Sensor connector does not fit

Double-check the vehicle compatibility. This sensor has a specific 4-pin connector; ensure it matches the vehicle's harness. If there is a mismatch, you may have selected the incorrect part.

Pros and Cons

Pros

  • Ensures accurate air-fuel ratio for optimal engine performance.
  • Helps maintain catalytic converter efficiency, reducing harmful emissions.
  • Contributes to improved fuel economy by preventing over-fueling.
  • Direct-fit design simplifies installation for mechanics and DIYers.
  • Heated element ensures rapid sensor response for immediate feedback to the ECU.

Cons

  • Requires careful verification of vehicle compatibility before purchase.
  • As a replacement part, it doesn't add new functionality beyond the original component.
  • Installation may require specific tools or knowledge of exhaust systems.
  • Performance depends on the overall health of the vehicle's engine and exhaust system.

Setup, Compatibility & Care

Compatibility Verification: Before installation, it is crucial to use the vehicle compatibility tool or consult a professional to ensure the Denso DOX-0276 Lambda Sensor is the correct part for your specific vehicle make, model, and year. Cross-reference with OE number 8946552060 or provided compatible part numbers.

Installation:

  1. Ensure the engine is completely cool before starting.
  2. Locate the old oxygen sensor in the exhaust system (typically before or after the catalytic converter).
  3. Disconnect the electrical connector from the old sensor.
  4. Carefully unscrew the old sensor using an appropriate oxygen sensor socket wrench.
  5. Remove any debris from the exhaust port.
  6. Screw in the new Denso DOX-0276 sensor. The pre-greased thread aids installation. Do not overtighten.
  7. Connect the electrical connector securely.
  8. Clear any diagnostic trouble codes (DTCs) from the ECU using an OBD-II scanner.

Care: Lambda sensors are sensitive components. Avoid spraying cleaning agents directly onto the sensor or its wiring. Physical damage, contamination (e.g., from oil or coolant leaks), or improper installation can lead to premature failure. Regular maintenance checks of the exhaust system can help prevent damage.

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