Lambda Sensor - Denso - DOX-0508

This Lambda Sensor from Denso is a high-quality replacement part designed for optimal performance....

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Product Information

Full details

The Denso DOX-0508 Lambda Sensor is a high-quality, direct-fit replacement part for TOYOTA IQ KGJ10 1.0 (2009-2013, 1KR-FE engine) models, offering optimal performance and easy installation. Its key benefits include a heated broadband design for rapid response and pre-greased threads to simplify the replacement process. A potential caveat is its specific vehicle fitment, requiring verification before purchase.

All features

Model Part NumberDOX-0508
BrandDenso

Extended Product Information

FAQs

What does a Lambda sensor do?

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

How do I know if my Lambda sensor needs replacing?

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

Is this a direct fit for my 2010 Toyota IQ 1.0?

Yes, the Denso DOX-0508 is designed as a direct fit replacement for the TOYOTA IQ KGJ10 1.0 model with the 1KR-FE engine manufactured between 2009 and 2013. It matches the OE number 89467-74010.

What is the benefit of a heated sensor?

A heated sensor reaches its optimal operating temperature faster than a non-heated sensor. This allows it to provide accurate readings to the ECU sooner, improving emissions control and fuel efficiency, especially during short trips or cold starts.

Do I need to use anti-seize compound on the threads?

No, the Denso DOX-0508 comes with pre-greased threads, which simplifies installation and helps prevent the sensor from seizing in the exhaust pipe. Adding additional anti-seize compound is generally not recommended unless specified by the vehicle manufacturer.

What is the cable length of this sensor?

The cable length for the Denso DOX-0508 Lambda Sensor is 250 mm.

Can I use this sensor on a different car model?

This sensor is specifically designed for the TOYOTA IQ KGJ10 1.0 (2009-2013, 1KR-FE engine) and matches OE number 89467-74010. Using it on other vehicle models may result in incorrect readings, poor performance, or damage.

Troubleshooting

Check Engine Light remains on after replacement

Ensure the electrical connector is securely attached. Clear the DTCs using an OBD-II scanner. If the light persists, there may be another engine issue or a faulty new sensor.

Engine performance issues (rough idle, poor acceleration) persist

Verify the sensor was installed correctly and is the correct part for the vehicle. Check for exhaust leaks near the sensor or manifold. Ensure other engine components (e.g., spark plugs, fuel injectors) are in good working order.

Difficulty installing the sensor (threads won't engage)

Do not force the sensor. Ensure you are starting the threads correctly and in alignment with the exhaust pipe. The pre-greased threads should facilitate smooth engagement.

Pros and Cons

Pros

  • Ensures accurate air-fuel ratio readings for optimal engine performance.
  • Heated sensor design allows for quicker warm-up and more responsive data.
  • Pre-greased threads simplify installation and prevent seizing.
  • Direct fit replacement for specific Toyota models, minimizing compatibility issues.
  • High-quality construction from a reputable brand (Denso).

Cons

  • Specific fitment is limited to particular Toyota models and engine types.
  • Requires careful verification of OE number (89467-74010) for correct application.
  • As an oxygen sensor, its lifespan is dependent on engine conditions and fuel quality.

Setup, Compatibility & Care

Compatibility:

This sensor is specifically designed for TOYOTA IQ KGJ10 1.0 models manufactured between 2009 and 2013, equipped with the 1KR-FE engine. It is a direct replacement for OE number 89467-74010.

Installation:

  1. Ensure the engine is cool before starting.
  2. Safely raise and support the vehicle to access the exhaust system.
  3. Locate the old oxygen sensor on the exhaust manifold or pipe.
  4. Disconnect the electrical connector from the old sensor.
  5. Using an appropriate oxygen sensor socket, carefully unscrew the old sensor.
  6. Clean the threads on the exhaust pipe if necessary.
  7. Screw in the new Denso DOX-0508 Lambda Sensor by hand, noting the pre-greased threads assist in this step.
  8. Tighten the sensor securely with the socket wrench, following torque specifications if available.
  9. Reconnect the electrical connector.
  10. Lower the vehicle and clear any diagnostic trouble codes (DTCs) with a scan tool.

Care:

Lambda sensors are sensitive components. Avoid exposing them to excessive heat, contaminants, or physical damage. Regular engine maintenance, including using the correct fuel and ensuring proper engine operation, will help prolong the sensor's life.

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