pm sensor toyota innova fortuner hilux

The PM Sensor (Exhaust Gas Temperature Sensor) Part Number 89425-71070 / 894A0-71070 is an important emission control component used in Toyota diesel vehicles such as Innova, Fortuner, and Hilux. This sensor is installed in the exhaust or silencer area and continuously measures the temperature of exhaust gases flowing through the DPF (Diesel Particulate Filter) system.

The sensor sends real-time temperature data to the engine control unit (ECU). Based on this data, the ECU manages DPF regeneration, which is the process of burning accumulated soot inside the particulate filter. Proper regeneration keeps the exhaust system clean and ensures the vehicle meets BS6 emission standards.

When the PM sensor detects abnormal exhaust temperature, the ECU can adjust fuel injection and regeneration cycles to protect components like the turbocharger, catalytic converter, and silencer. If this sensor fails, the vehicle may experience DPF regeneration failure, check engine light, excessive smoke, poor mileage, or limp mode.

Common problems related to a faulty particulate matter sensor include BS6 emission warning, DPF blockage message, incomplete regeneration cycles, and reduced engine performance. Replacing the sensor with the correct OEM part ensures accurate exhaust temperature monitoring and smooth operation of the emission system.
This sensor is designed for durability in high-temperature environments and is a direct replacement for the original Toyota part used in modern diesel vehicles equipped with DPF technology.