Error Code P0110: What It Means & What To Do?

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A sudden increase in the fuel consumption and the engine performance along with occasional engine stalling and not starting with improper throttle response may be an indication of problem with the Air intake system hampering the engine’s performance, thus indicating OBD Code P0110.

OBD-II Code P0110 is defined as an Intake Air Temperature Sensor 1 Circuit Malfunction

The IAT (Intake Air Temperature) sensor is a thermistor, which measures the air temperature by detecting resistance in the air. It's located in the intake air ductwork but can be located in the intake manifold on some vehicles. Being a two-wire sensor, it is supplied with a 5-volt reference wire from the PCM (Powertrain Control Module) and a ground wire. The passing air changes resistance on passing over the sensor. The powertrain control module (PCM) monitors this change and calculates air temperature to help operate the engine at the most efficient point possible at any given temperature. If the PCM detects a voltage out of normal operating range for a particular sensor, an OBD code P0110 will set.

What causes the problem of Intake Air Temperature Sensor 1 Circuit Malfunction?

• Intake Air Temperature sensor and circuit being faulty or damaged
• Wiring and harness related to the sensor are short or broken
• Poor electrical connection to the Intake Manifold
• PCM being faulty and taking wrong readings

1. Intake Air Temperature - Are you facing OBD Error Code P0110? Don’t worry as you can fix this issue with new Intake Air Temperature. We care for our customers, that’s why we have Intake Air Temperature for every make and model.
2. Electronic Control Unit - Common cause behind this P0110 error code can be some fault in Electronic Control Unit. So, it will be a good decision to replace them now.
3. IAT sensor - Timing Chain is perfectly fine but still but having that trouble code P0110 flashing? In such a situation your IAT sensor might be faulty. Why don’t you think of getting that replaced?
4. Wiring - Sometimes P0110 error code can come because of some fault in the wiring. So, it would be a nice decision to replace it now!
5. Alternators - The P0110 code can also arise due to some issues in alternators. So, it is advised to replace them as soon as possible.
6. Ignition Wires - P0110 code does not really end up spoiling your timing belt, but it might also accompany few ignition issues. We have best ignition related parts with us.
7. Throttle Position Sensor - It can be very problem some if OBD code P0110 keeps on triggering. Visit us to purchase best Throttle Position Sensor online.
8. Manifold Air Pressure sensor - Did your car mechanic just tell you that there is some fault in the manifold air pressure sensor? In that case, you must get it replaced with a brand new one.
9. Mass Air Flow sensor - Problems with the mass air flow sensor can be frustrating. Why not get it replaced?
10. Diagnostic Tools - Buy quality diagnostic tools to correct the OBD code errors. Buy form us now!

The most common sign is the illumination of Check Engine light. It can also cause some drivability issues, such as:

Common Symptoms

• Reduced engine performance, poor idle
• Erratic acceleration and power
• Engine running rich and backfires due to throttle position sensor and IAT sensor not being electrically synchronized together
• Engine hard starting
• Reduction in fuel economy

Some of the common fixes for the problems in the OBD Code P0110 for all makes and models are as follows;

• Check the placement of IAT and hasn't been dislodged. Use a scan tool & check for IAT reading with KOEO (Key on engine off). If the engine is cold, the IAT reading should be the same as the CTS (Coolant temperature sensor) reading.
• Replace the sensor, if the resistance of the IAT sensor isn't within specs for both the sensors.
• Check for faulty wiring and harness leading to faulty sensor reading and circuit problems.
• If the wiring is correct, then you must focus on the PCM next. Although it’s rare to be faulty but can need reprogramming.

A qualified technician who has the knowledge of industrial grade diagnostic tools should be recommended for the diagnosis Error P0110. Proper checks of the wirings and connectors as well as sensors, ECM/PCM fuel delivery system, transmission system, etc., should be done. Following are some diagnosis that you can focus on.

• IAT (Intake Air Temperature) Sensor replacement
• Damaged wiring/connections to the IAT (Intake Air Temperature) Sensor
• Repair PCM that may need reprogramming.
• Leaky and damaged intake/inlet pipe should be diagnosed immediately
• Replacing faulty MAF (Mass Airflow Sensor)

Common mistakes when diagnosing the P0110 code

Some of the common mistakes done while changing diagnosing the OBD code P0110 are:

• Directly replacing the IAT sensor without evaluation.
• Simply replacing the Powertrain Control Module (PCM) without considering other possibilities of problem.
• Not checking the damaged or loosened wiring and circuit problems.