P0113 – What Does It Mean?, Causes, Symptoms, Diagnose, And How To Fix It

What Does Code P0113 Mean?

P0113 Meaning: Intake Air Temperature – (IAT) Sensor Circuit High Input Problem. It is also a generic OBD-II diagnostic trouble code (DTC).

The Powertrain Control Module (PCM) or the Engine Control Module (ECM) is designed to monitor the air temperature entering your engine so that there will be a proper air-fuel mixture. The right air-fuel mix, in turn, provides adequate oxygen to your car engine to burn the fuel effectively. Much little air can cause inadequate combustion, excess air can damage the engine.

To prevent this damage, the PCM monitors the air-fuel mix with the intake air temperature sensor (IAT sensor).

The IAT sensor is a thermistor that varies resistance with the air temperature in the combustion chamber. The rise in air intake temperature causes a drop in its thermistor’s resistance, cooler temperature results in higher resistance in the temperature sensor.

Your vehicle’s PCM sends 5 volts of voltage to the IAT sensor.

If the PCM receives a signal voltage of more than 5 volts from the air temperature sensor, then, it means there’s a problem with air intake Sensor 1 or its circuit.

Due to this, the PCM logs the P0113 code, and the check engine light illuminates.

P0113 Causes

There are several potential causes of code P0113. You need to check out these common causes include:

  • A dirty air filter
  • A faulty PCM or ECM
  • A damaged intake air temperature sensor (IAT sensor)
  • A faulty mass air flow sensor (MAF sensor)
  • A faulty IAT sensor connector
  • An open IAT ground circuit or signal circuit
  • A shorted IAT signal circuit
  • The IAT sensor wiring network is passed too close to a high voltage wiring (like a spark plug wire or alternator)
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P0113 Symptoms

There are several symptoms of p0113 it all depends on your vehicle manufacturer or engine type.

These are some of the common symptoms of P0113

  1. Check Engine Light
  2. Trouble starting the engine
  3. Engine running lean

P0113 Diagnosis

DTC P0113 is a generic OBD-II (or OBD2) trouble code. It is applied to all vehicles that support the On-Board Diagnostics II system.

You need a professional mechanic that will diagnose the P0113 code, don’t try to do it by yourself because you don’t have enough knowledge to diagnose it successfully.

Your mechanic will use an OBD II scanner to document the registered code.

Then, check the freeze frame data so that he or she will be able to analyze the conditions that triggered the code.

As soon as they can analyze the condition, what next is to clear the fault code and test drive your vehicle to see if the check engine light turns on and the code returns.

At this point, if the code returns, they’ll visually examine the wiring harness between the temperature sensor and the PCM and check the connector to the sensor and look for any open circuit.

Then, they may use an infrared thermometer to check the intake air temperature with coolant temperature when the engine is warm. When working perfectly, the intake air temperature will be slightly lower than the coolant temperature.

They can also remove the sensor from the IAT connector and use a multimeter to test the resistance of the air temperature sensor.

Your mechanic will apply heat to the IAT sensor tip so that they will be able to check if the resistance decreases. If there is no difference in the resistance reading, then the IAT is faulty and should be replaced.

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But, if no faults are found in the above steps, your mechanic may inspect the PCM or ECM for any malfunction.

P0113 Error Code – FIX

The major purpose of writing this informative article is to explain all the necessary information that you need to know especially when it comes to fixing the P0113 code.

If the major cause of your p0133 code is the IAT sensor fault, then you need to get it diagnosed to figure out what is causing the problem.

If your vehicle has a P0113 code and you don’t want to diagnose it by yourself at home then you need to get it done in a reliable and trusted mechanic shop.

Professional mechanics will help you to figure out what’s going wrong within a short time, but they offer a minimum 12-month, 12,000-mile warranty and stand behind all their estimates with guaranteed fair pricing.

How Much Does It Cost to Fix Code P0113?

It is very important to know the cost of fixing the P0113 code so that you will be able to plan and pay before you begin the process of fixing your p0113 code.

you need to know that you can’t know the cost of fixing your P0113 code until there is a proper and accurate diagnosis first.

Immediately after, identifying the major cause, then your mechanic may discover the issue. Your mechanic may discover any of the issues below.

Wiring or connector issues: If the major problem is the wiring and the connector for the IAT sensor or if there’s any short circuit, then you need to replace the faulty wire or connector.

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Temperature sensor issues: if the major problem of your P0113 code is a temperature sensor issue, then your mechanic needs to fix any fault in the temperature sensor. You will pay for cleaning, adjustment of the sensor and its ground, or replace the sensor if it’s too damaged.

Air filter issues: If the air filter is the major cause of your P0113 code, then it is a dirty or damaged air filter, you need to pay your mechanic to clean or replace the filter to ensure good air intake.

MAF sensor issues: The mass air flow sensor and MAF connector may be at fault and it causes the P0113 code in this case your mechanic will need to inspect the MAF sensor and its connector and replace them if it is necessary.

PCM issues: Your mechanic will test the PCM and replace it if it is necessary.

These are estimated repair costs for some of the fixes below.

  • Air intake temperature sensor replacement cost: $87 to $96
  • Air filter replacement cost: $40 to $85
  • MAF sensor replacement cost: $80 to $380 ● PCM replacement cost: $800 to $1,500.

In Conclusion

It is very important to face the cold immediately when it pops up so that you will be able to avoid emission system and catalytic converter damage.

You can still drive a vehicle with P0113 for a short time but it’s always advised to flee from driving your car with the PO113 code for a long time because it may cause internal engine damage due to the slowness of the engine. Which will cause severe repair costs.