Where is the temperature sensor on a Toyota 2L?

Location of the Temperature Sensor on a Toyota 2L
The temperature sensor on the Toyota 2L engine is located on the passenger side rear of the engine. This sensor sends temperature information to the ECU. It is also mentioned that the location of the sensor seems to be right off of the upper radiator hose by the valve cover. Additionally, it is noted that the sensor is located on the driver’s side of the engine block with an electrical plug with one white and one brown wire.
It’s important to note that the temperature sensor mentioned is the one that sends temperature information to the ECU, not the one connected to the water temperature gauge on the dashboard.

What happens if you unplug the coolant temp sensor?

If you unplug the sensor when the engine is cold the engine may run smoothly at first but as the engine warms up the a/f mix will become too rich and the engine will start misfiring and possibly stall.

Are there 2 coolant temperature sensors?

There are two temperature sensors in some vehicles, one to send information from the engine system to the control unit and another from the control unit to the dashboard. The device follows the principle of dependence of potential difference in temperature.

Where is the temp sensor located?

Where is the Coolant Temperature Sensor located? The coolant temperature sensor will be located directly behind the coolant pipe. In most modern cars and vehicles, this is present behind the right cylinder head that is located right underneath the air intake pipe.

What are the symptoms of a bad or failing coolant temperature sensor?

Common Symptoms of a Faulty ECT Sensor

• Engine Overheating: A faulty ECT sensor may not accurately sense the engine’s temperature.
• Constant High Engine Temperature: If the ECT sensor sends incorrect high-temperature readings to the ECM, the engine may run too hot, causing a decrease in performance and fuel efficiency.

How do you reset the coolant temperature sensor?

No, the coolant temperature sensor cannot be reset.
The engine coolant temperature sensor, or ECT is just a resistor affected by temperature—nothing’s being stored on it and it has no software.

What are the symptoms of a faulty temperature sensor?

If the computer detects that the engine is heating up too much, the performance settings will be adjusted to prevent overheating.

• Faulty Coolant Temperature Sensor – 4 Common Symptoms.
• Fuel Consumption Increases.
• Check Engine Light Flashes.
• Engine Overheating.
• Black Smoke from the Exhaust.
• Don’t Ignore the Warning Signs.

Will a temp sensor throw a code?

So when the engine has been running for more than a few minutes, and the ECT reads a less than freezing temperature, the PCM will think there is a circuit fault and set the P0118 code. The PCM will also set the code if it determines that the ECT sensor resistance is out of the predefined specification.

How do I check my temperature sensor?

You can take a multimeter connect clips to both wires. then do an ohms check with boiling water. Most temp sensors are just beeswax for the temp medium. resistance will change as it gets hotter ,you will know if good or bad.

What happens when coolant temperature sensor goes bad?

If your coolant sensor went bad so it can’t read temp properly such as it thinks the engine is colder than it actually is. The sensor sends it’s info to the ECU which processes this info and adjusts the fuel injector to deliver fuel to a “COLD” engine even though the engine is actually warm.

Is coolant temperature sensor easy to replace?

Yes, it’s extremely easy but also very dangerous. It is shaped like a big bolt and simply unscrews from the socket. But if this is done when the vehicle is hot it will spray out boiling coolant. So the vehicle must be allowed to sit and cool down with the radiator cap off before changing the sensor.