Toyota IST Air Fuel Ratio Sensor

Premium Re-conditioned Air Fuel Ratio Sensors for Toyota IST – Direct from Japan

Owning a Toyota IST in Sri Lanka means enjoying a perfect balance of style, comfort, and reliability—but to keep it performing at its best, your Air Fuel Ratio (AFR) sensor must be in top condition. Often called a wideband O₂ sensor, this advanced component provides the Engine Control Unit (ECU) with exact readings of the air-to-fuel ratio in your exhaust. These readings allow the ECU to make precise adjustments to fuel delivery and ignition timing, ensuring smooth acceleration, excellent fuel economy, and low emissions.

However, AFR sensors don’t last forever. Over time, heat, carbon deposits, and fuel contaminants can reduce their accuracy. When the sensor fails, it can cause rich or lean running, higher fuel consumption, increased emissions, rough engine behaviour, and an illuminated Check Engine Light.

We supply genuine OEM AFR sensors for all Toyota IST models—professionally re-conditioned in Japan to meet factory standards. Each unit undergoes detailed cleaning, recalibration, and rigorous signal-response testing before it reaches your hands, so you get like-new performance at a fraction of the cost of a brand-new part.

Toyota IST AFR Sensor Part Numbers We Stock:

NCP110: 89467-52010, 89467-12180

NCP115: 89467-52030, 89467-52190

ZSP110: 89467-12030

Typical Signs of a Bad AFR Sensor:

Sudden drop in KPL (fuel efficiency)

Check Engine Light on with codes such as P013A–P015B

Flat spots or hesitation under acceleration

Failed emissions test

Unusual fuel smell from exhaust

Why Our Japanese Re-conditioned Sensors Are the Smarter Choice:

Perfect Fit: Direct OEM replacement with original connectors

Restored Accuracy: Delivers correct AFR data for optimum ECU control

Better Value: OEM-level reliability for less than the price of new

Eco-Friendly: Keeps emissions low and reduces waste by reusing OEM parts

Proven Quality: Tested under real driving conditions before sale

With our ready stock of Toyota IST AFR sensors in Sri Lanka, you can bring back the original performance, enjoy better mileage, and keep your IST running exactly as Toyota intended.