How to Fix P0110 Code: Meaning, Causes and Symptoms 2023

The P0110 diagnostic code occurs within the engine’s control units and trouble code memory when there is a problem with your vehicle’s circuit intake and air temperature sensor. There are a number of reasons for this. Let’s find out!

It is not shocking for a machine like your vehicle to develop some faults now and then, According to science no machine is 100% efficient, so issues like the P0110 code can pop up. It helps when you know what to do in case this happens.

Meaning of P0110 Code

Intake Air Temperature sensor, circuit malfunction

This P0110 code means the vehicle’s engine control unit finds a faulty circuit against the Intake Air Temperature sensor. It might be a wiring problem or either a faulty sensor, this trouble code often refers to electrical circuit problems not the air temperature problem.

This Air Intake Temperature sensor usually is integrated into the MAF sensor.

P0110 Trouble Code Symptoms

The only symptom that might be present with the P0110 code is the check engine list in some cases.

In many cases, you may experience some experience performance problems, for example, poor engine performance or rough idle. You may note the following issues with this code P0110:

  • Rough idle
  • Check engine light
  • Poor performance
  • Low or high fuel consumption

Causes of P0110 Code

Because the P0110 code shows that there might be a problem with your vehicle’s circuit to the sensor, not many things can lead to this.

Below are some of the common causes of the P0110 code:

  • Faulty air intake temperature sensor
  • A bad engine control unit
  • Shorted or broken wirings to air intake temperature sensor
  • When the connector plug of the air intake temperature sensor is corrosive

How Serious is the P0110 Code?

Low when this P0110 code occurs, your engine will not read the air intake temperature, this will instead use an estimated value. Fuel correction of this air temperature is very low.

This P0110 code will not cause your vehicle to stop after the road, it will also not cause any more engine damage, that is if this is not long-term. Although, it is safer to repair the P0110 code when diagnosed.

What Repairs Can Be Used To Fix The P0110 Code?

  • Replace your air intake temperature sensor
  • Replace the MAF sensor
  • Clean out the air intake temperature sensor and connector plug
  • Repair the air intake temperature sensor wirings

Common P0110 Diagnosis Mistakes

A common mistake for the P0110 diagnosis is replacing the air temperature sensor before checking for the connector wirings and plugs.

Another mistake is they start looking for things that can cause high intake temperature before realizing that it is a fully electrical trouble code, this tells us if there is something wrong with your circuit.

Recommended Tools for Diagnosis

  • [amazon link=”B07SHLS639″ title=”Digital Multimeter“]
  • [amazon link=”B000BXOGNI” title=”Electrical Contact Cleaner“]
  • [amazon link=”B00UJV3E12″ title=”Diagnostic OBD Scan Tool“]
  • Basic hand tools
  • Auto repair manual

Causes of the P0110 Code

Your intake air temperature (IAT) sensor may be tripped for any of the various reasons:

  • The engine might have serious issues such as internal problems or even poor fuel pump pressure.
  • The sensor may not be receiving enough amount of voltage.
  • The IAT sensor might be damaged or worn out. This is somewhat the most common issue when it is to getting a P0110 error code.
  • Your engine control unit might not be getting the right amount of voltage from the IAT.

What are the Symptoms of the P0110 Code?

Common symptoms that involve a P0110 code include the following;

  • Backfiring: This occurs when the throttle position sensor and IAT sensor are not in proper sync.
  • Acceleration issues: The vehicle acts erratic or sluggish during normal operation.
  • Engine performance: If you are experiencing power loss frequently or some performance issues. This can occur when you are trying to overtake traffic or driving up a steep hill.
  • Idling: This is a lot of unusual vibration when you are trying to stop your vehicle.
  • Vehicle starting issues: When your vehicle makes sounds like it is not getting enough fuel, or if the battery of your vehicle is usually weak when trying to start it up.

How to Diagnose P0110 Code

The easiest way to diagnose this P0110 code is by using the [amazon link=”B00UJV3E12″ title=”Onboard Diagnostic OBD II Scanner“]. The scanner is plugged into the port by the mechanic and resets the fault code after this the vehicle is taken for a test to see if this code might show up again.

This OBD scanner tells the mechanic many things, for example, if your IAT is getting enough voltage and if this information is sent to the ECU. If the voltage is not current then the problem is with the IAT sensor.

How to Fix P0110 Code

If you do not know how to go about this, it is better to seek professional help.

Step 1: Reset the Trouble Code

Use the OBD II scanner to reset your po110 code, after resetting is done then take a test drive to check if this error code will occur again. If this error comes back and your engine’s light illuminates then delve deeper into fixing the problem.

Step 2: Inspect the IAT Sensor Wiring

The IAT sensor wiring will lead to circuit issues when it is worn off or broken. Inspect the wiring then use a digital multi-meter in checking for any shorts. Also, fix the wiring to avoid any short-circuiting and inspect the IAT connector plug for corrosion or damage.

Step 3: Check for Proper Voltage

Use the repair manual to check if the voltage of the IAT sensor is corresponding with the manufacturer’s specification, if not clear the error, unplug and then reconnect the IAT sensor.

Step 4: Replace the IAT Sensor

If the above step fails, then your intake air temperature sensor may be faulty. You can fix this by replacing the IAT sensor.

Step 5: Replace the Engine Control Module 

If all other steps fail, then your ECM is faulty and must be replaced and ensure that the wirings and sensor are well fixed.

Step 6: Clean Intake Air Temperature Sensor

Clean the Intake Air Temperature sensor.

To clean this IAT sensor, remove the sensor and disconnect the battery from the intake manifolds. Spray electrical contact cleaner on a clean paper towel, use this to wipe all the dirt from the IAT.

Final thoughts

From the professional and safety perspective, no vehicle fault should be ignored. When you notice the P0110 code, you will need to repair this immediately.

You can either use this service guide or take it to a professional for diagnosis and repair. This action will help you save a lot; it will stop the vehicle from developing further issues and enable it to run efficiently.