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Intake Air Temperature Circuit Intermittent

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What P0114 means

Severity not yet assessed

The control unit reports “Intake Air Temperature Circuit Intermittent”. Code P0114 identifies the area to investigate, but it does not prove that one named part has failed without a confirming test and vehicle context.

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General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.

A code pointing at the intake air temperature sensor is a starting point, not a verdict — confirm before you spend money.

What this code does not prove

What the intake air temperature sensor triggers here is an observation, not a diagnosis of a specific part. Several different causes can produce the same code, which is why a test has to narrow it down.

Where the diagnosis usually goes next

Check the signal at its source

What P0114 actually reports is a condition of the intake air temperature sensor: the signal drops out or changes unexpectedly rather than failing in one fixed way. Treat that as a starting point for investigation, not a verdict.

How to tell the paths apart: Read the live data and compare it against the expected range for current conditions before replacing anything.

Rule out wiring and the connector

Codes of this shape often come from damaged wiring, a corroded connector, or a poor ground on the intake air temperature sensor — not the component itself.

How to tell the paths apart: Inspect the wiring and connector for the intake air temperature sensor for damage and a secure ground before replacing anything.

Before you drive on

One code about the intake air temperature sensor is not enough to issue a blanket verdict for this vehicle. Keep use to what diagnosis requires while it runs normally, and reconsider the moment that changes.

Stop and arrange a check if

  • the engine is misfiring, losing power, or stalling
  • smoke, a fuel/burning smell, or overheating appears
  • the intake air temperature sensor's behaviour is clearly getting worse rather than staying stable

Before authorising a repair

  • Bring the complete code list and freeze-frame data relevant to the intake air temperature sensor
  • Ask for the test that confirms a fault in the intake air temperature sensor — not just the code alone

What to check first

  1. Before anything else, compare live readings from the intake air temperature sensor against what is normal for the current conditions.
  2. Inspect the wiring, connector, and ground for the intake air temperature sensor before replacing the component.
  3. An intake air temperature sensor should read close to ambient temperature after the vehicle has sat for a while (a cold soak) and rise once the engine has been running and under-hood temperatures climb. A reading permanently pinned at one extreme, or one that never changes between a cold soak and a warmed-up engine, points to the sensor or its wiring rather than an actual thermal condition — comparing the cold-soak reading against a thermometer is a reliable first check.
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Frequently asked questions

Does this code tell me the intake air temperature sensor has failed?

No. It points to the intake air temperature sensor; the cause still needs to be confirmed by a measurement or targeted test.

What should I bring to the workshop?

The complete code list, freeze-frame data, and the conditions around the intake air temperature sensor — that gives the technician context, not a guess.

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