0258006270 / 89465-0H010 Oxygen Sensor (Lambda Probe) – Front / Pre-CAT – Fits Toyota Aygo, Yaris, Corolla & Citroën C1, Peugeot 107 – OEM-Spec Replacement

Description

✅ Product Overview

Keep your engine running efficiently with this heated oxygen sensor / lambda probe.
A faulty sensor can cause poor fuel economy, high emissions and MOT failures.
This front / pre-CAT sensor is designed as a direct replacement for the original factory-fitted unit, restoring correct fuel-air mixture feedback to your ECU for optimal performance.

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⚙️ Key Features & Benefits

• OEM-spec replacements: Bosch-cross-ref 0258006270, Toyota 89465-0H010

• Heating-type sensor for fast warm-up and accurate readings soon after engine start

• Restores correct AFR (air-fuel ratio) improving MPG, throttle response & emissions

• Pre-CAT / Upstream position – monitors exhaust gases before catalytic converter

• Plug-and-play fitment – no modifications required

• Durable design – resistant to high heat and exhaust contaminants

• 1-year UK warranty against manufacturing defects

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🛠️ Technical Specifications

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🚗 Vehicle Compatibility (UK & EU-Spec)

Front / Pre-CAT Sensor – always confirm OE part number before purchase

• Toyota Aygo 1.0 1KR-FE – 2005/07-2019/12 – WNB1_, KGB1_ – 998 cc 50 kW 68 PS

• Toyota Yaris 1.0 VVT-i 1KR-FE – 2005/01-2011/11 – P9 – 998 cc 51 kW 69 PS

• Toyota Corolla 1.4 VVT-i 4ZZ-FE – 2001/11-2007/02 – E12 – 1398 cc 71 kW 97 PS

• Toyota Corolla Station Wagon 1.4 VVT-i 4ZZ-FE – 2002/01-2007/02 – E12J, E12T – 1398 cc 71 kW 97 PS

• Toyota Corolla Saloon (Stufenheck) 1.4 VVT-i 4ZZ-FE – 2001/10-2006/10 – E12 – 1398 cc 71 kW 97 PS

• Citroën C1 1.0 1KR-FE – equivalent fitment years

• Peugeot 107 1.0 1KR-FE – equivalent fitment years

(If unsure, match your existing sensor’s part number before ordering.)

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💡 Installation & Safety

Professional installation recommended. Ensure exhaust threads are clean and always reset ECU fault codes after fitment.

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🛒 Why Choose Our Sensor

• Quality aftermarket replacement at a competitive price

• Improved engine efficiency, lower emissions, MOT-friendly

• Fast UK dispatch & reliable customer support

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🟩 1. FAQ – Oxygen Sensor (Lambda Probe) – 0258006270 / 89465-0H010

🔎 1. What are the symptoms of a faulty oxygen sensor?

• Check-engine light on with codes such as P0130–P0135

• Poor fuel economy and reduced engine performance

• Rough idle or hesitation under acceleration

• Failed MOT emissions test or strong exhaust smell

• Black smoke or excessive fuel consumption

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🔎 2. Why is the Pre-CAT (upstream) sensor so important?

The upstream lambda sensor constantly monitors exhaust gases before they enter the catalytic converter.
A failing sensor can send incorrect signals to the ECU, leading to rich/lean mixtures, increased emissions, and catalytic-converter damage.

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🔎 3. Will replacing this sensor improve fuel economy?

Yes – a new sensor restores accurate air-fuel ratio readings, helping the ECU optimise fuel delivery for better MPG, smoother throttle response, and lower emissions.

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🔎 4. Do I need to reset the ECU after fitting a new sensor?

It’s recommended to clear any stored fault codes with an OBD2 scanner after installation so the ECU can adapt to the new sensor.

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🔎 5. Can I fit the sensor myself?

If you have basic mechanical skills and the correct 22 mm O₂-sensor socket, you can replace it yourself.
For seized sensors or corroded exhaust threads, professional fitting is advised.

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🔎 6. Is this sensor compatible with both petrol and diesel cars?

This part is for petrol engines only – primarily for the listed Toyota and PSA models.

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💡 Pro Tip

Always replace any damaged exhaust gaskets and check for exhaust leaks near the sensor.
Leaks can introduce outside air and lead to false sensor readings, even with a brand-new probe.