8945420010 Toyota SENSOR, FUEL TEMPERATURE, Price: 41.64$, Weight: 0.03kg

Fuel Temperature Sensor for Toyota Vehicles ⛽

This small sensor tells the engine computer how warm the fuel is, so injection timing, pulse width, and pump duty stay correct. The result is smooth starts, steady power, better economy, and clean emissions in summer heat or winter cold. Built for a direct fit on many Toyota platforms, it restores factory drivability and protects the fuel system.

Why this part is needed

Fuel thins when hot and thickens when cold. The ECU uses fuel temp data to adjust rail pressure and injector strategy, preventing vapor lock, hot-soak stumble, and cold-start overfueling. It also reduces stress on the pump and injectors, keeping idle stable and mileage consistent.

How it works

Inside is an NTC thermistor placed in the fuel stream. As temperature rises, resistance drops. The ECU reads the voltage signal and corrects fueling maps. On diesels it fine-tunes pilot injection; on gasoline engines it trims delivery together with intake air and coolant readings.

If it fails ⚠️

Expect hard hot or cold starts, long cranking, rough idle, hesitation, higher consumption, fuel smells, black smoke on diesel, and Check Engine Light (often P0180–P0183). The pump may run harder, overheat, or the car may enter limp mode.

Install tips ✅

Located on the rail, filter head, or pump module. Disconnect battery, relieve pressure, replace the O-ring, oil the seal, and torque gently—do not overtighten. Keep the connector clean and dry, clear codes, and road-test.

Quality and specs

OE-style connector, ethanol-resistant body, fast thermistor response, wide range (-40°C to 125°C). Compatible with modern fuels (E10/E85). A reliable, plug-and-play fix for temperature-related fueling issues.