2011 Honda Odyssey Outside Air Temp Erroneous Readings
Take you noticed your car's engine driblet in acceleration together with a bank check engine calorie-free on your dashboard lately?
The chances are that your motorcar's intake air temperature sensor (IAT) is damaged and that it should be fixed immediately to avoid whatever serious damage to the engine.
In this article, you will learn the signs of a bad IAT sensor. We volition also take a look at the location and the replacement price. Let's begin with a quick look at the common signs to look for.
The nearly mutual symptom of a bad intake air temperature sensor is a check engine light on the dashboard. Other common signs you may notice are tiresome dispatch, hard common cold showtime, rough idle, or misfires.
This is merely a quick overview and if y'all want to acquire more than specific information, here is a more detailed listing of the 7 well-nigh mutual symptoms of a bad intake air temperature sensor.
Bad Intake Air Temperature Sensor (IAT) Symptoms
ane. Check Engine Light
The check engine light volition often appear on your dashboard when you accept any issues with the IAT sensor. The engine control unit of measurement heavily monitors all sensors in a motorcar engine, and if i fails, it will lite upwards the check engine light immediately.
If you notice a bank check engine light on your dashboard, check the problem codes with anOBD2 scanner or let your mechanic practice information technology.
2. Driblet in Acceleration
Due to a faulty intake temperature sensor, the engine control module may recall that the engine'south air is colder or warmer than information technology really is. A false point may crusade the PCM to miscalculate the air and fuel mixture, resulting in a drib in acceleration.
Colder temperatures require more fuel, which the engine control module is programmed to calculate.
3. Hard Cold Kickoff Condition
The starting status is a very disquisitional moment for your car. Your automobile needs a lot of and the correct amount of fuel.
If your intake temperature sensor makes the engine control unit of measurement inject the wrong corporeality of fuel, you might find it a tough time trying to start your car.
4. Rough Idle
Idle is likewise 1 of these conditions when the engine is susceptible to the right air-fuel mixture. This is too a condition when you can experience the faulty air intake temperature sensor's slightly faulty air-fuel mixture.
If you lot experience some small hiccups on idle, it tin exist a faulty IAT sensor.
5. Misfires
Misfires occur when the combustion within the engine cylinder fails. This tin be caused past either a faulty spark or a wrong air-fuel mixture.
You can feel misfires as hiccups or interruptions while y'all advance. If you can feel this on acceleration, there may be a problem with your IAT sensor.
6. EGR Valve Affected
In some cars, the engine control unit uses air temperature to command the EGR valve operation. Due to a faulty IAT sensor, the function of the EGR valve can be affected too.
An EGR valve that does non function properly tin can cause a lot of foreign symptoms in your car.
7. Poor Fuel Economy
In normal weather condition, the engine estimator constantly adjusts the fuel and air level mixture to ensure maximum fuel efficiency.
The engine command unit relies on the IAT sensor's information, and if a false point is sent, the fuel efficiency decreases or increases significantly.
If yous find a different fuel consumption than normal, information technology can be because of a failed IAT sensor.
What is an Intake Air Temperature Sensor?
The intake air temperature sensor or IAT sensor has the core function of monitoring the air temperature entering the engine of your vehicle.
This information is beneficial for the engine command unit or ECU for many functions and calculations, such as calculating the air density for effective ignition timing and fuel efficiency.
The computer system of your engine or the PCM requires this data to stabilize and regulate the combustion engine'due south air-fuel ratio. It ensures optimum combustion and efficient fuel consumption.
Where Is the IAT Sensor Located?
The Intake Air Temperature Sensor is located somewhere on your intake pipes between the air filter and the intake manifold. It is oft integrated with the MAF Sensor.
Frequently, information technology is likewise installed on the intake manifold.
The intake air temperature sensor's location is non standard due to different locations in a variety of designs. The best way to locate the IAT sensor in your vehicle is to refer to the service manual provided past your manufacturer.
Intake Temperature Sensor Diagnostics
The diagnostic process of checking if the IAT sensor has failed is relatively easy. You can practice it yourself if you lot accept some basic knowledge and the tools available to you. Have a repair manual for your motorcar fix.
- Connect the OBD2 scanner to your car. Turn on the engine.
- Check the live data and check the temperature of the IAT sensor. Typically, the temperature readings should be x degrees more or less than the vehicle's ambient temperature, depending on the outside temperature and the engine'due south temperature.
- If the readings are not realistic, in that location could be a trouble with your IAT sensor or the wirings to it. If the temperature is over 300 degrees or has a low unrealistic value, check the MAF sensor/IAT wires every bit they tin can be damaged.
- Ohm-measure the Intake temperature sensor and make sure they are the same as your repair transmission suggests. If you can detect that the ohms are non right, replace the sensor and remove the trouble codes.
- If the sensor seems correct, bank check and measure the sensor'southward wirings and the engine control unit.
IAT Sensor Replacement Cost
The boilerplate intake temperature sensor replacement cost is between $forty and $250, depending on the automobile model and labor costs. An intake temperature sensor costs $20 to $150, and the labor costs $20 to $100.
If your intake temperature sensor is integrated into the MAF sensor, the part cost can increase quickly. Some MAF sensors toll up to $400.
The replacement of a MAF sensor or intake temperature sensor is oftentimes very straightforward and can oftentimes be fabricated yourself with basic noesis.
In some cars the IAT sensor can be located under the manifold in a difficult location, but this is quite rare.
Source: https://mechanicbase.com/engine/intake-air-temperature-sensor-symptoms-iat/
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