P0114 Code Meaning and Next Steps

First checks take 10 to 15 minutes for the first checks. No special tools are usually needed for the first checks.

Can you keep driving?

Stop driving if any of these apply

!The engine starts running much worse, stalls, or the warning light flashes.
!The vehicle begins to overheat or lose power sharply while the code is active.

If the light is steady and the vehicle still drives normally: Often yes for a short time, but it should not be ignored.

What to check first

Step-by-step checks

1
Free - no tools
Compare the cold reading to the actual outside temperature after the vehicle sits overnight
2
Free - no tools
Inspect the sensor connector and harness near the airbox for looseness, corrosion, or damage
3
Basic tool needed
Move the harness gently while watching live data if you can, because intermittent faults often show up as dropouts
4
Basic tool needed
Check whether the sensor is separate from the MAF or built into it before buying parts
5
Basic tool needed
If the code appeared after intake work, confirm the connector is fully seated and the intake parts are installed correctly

If the code returns

-If the reading changes when the harness moves, wiring becomes more likely than the sensor body alone.
-If the sensor is integrated with the MAF, the repair may involve the combined unit rather than the small insert alone.
-If the code returns after a replacement, check the connector pins and reference circuit again before buying another part.

Background

What this code means

P0114 is a generic OBD-II intake air temperature sensor code.

The reading may jump around, drop out, or change in a way that does not match the actual outside or under-hood temperature.

A weird ambient temperature reading, unstable fuel trims, or a code that comes and goes can fit this fault.

Diagnosis

Common causes

Most common

Loose connector

A poor connection can make the temperature reading jump or drop out.

Common

Broken wire

A wire that opens and closes with movement can trigger an intermittent signal.

Common

Failing IAT sensor

The sensor can drift or drop out only under certain conditions.

Possible

Moisture or contamination

Water or contamination in the connector can create an unstable reading.

Avoid these mistakes

What not to do

xDo not replace the sensor first if there is an obvious wiring, connector, or intake issue.
xDo not ignore drivability changes just because the code sounds like a sensor problem.

Parts

Parts that may need replacing

PartTypical costNotes

Intake air temperature sensor$20-$80Relevant when the sensor is proven to be unstable.

Connector pigtail repair$15-$90Worth checking if the plug or pins are loose or damaged.

Air intake duct or housing$10-$70Useful if the sensor area is cracked or contaminated.

Related OBD codes

P0111

P0111 usually means the intake air temperature signal is out of the expected range.

P0112

P0112 usually means the intake air temperature signal is reading too low.

P0113

P0113 usually means the intake air temperature signal is reading too high.

Source notes

Generic OBD-II (SAE J1979 / ISO 15031-5). P0114 was expanded around common intermittent intake-air-temperature faults, including loose connectors, broken wiring, and moisture problems.

This guide is written as a generic multi-make reference, so bulletin history, sensor locations, and repair order can still change by manufacturer and engine family.

This is generic OBD-II guidance and should not override vehicle-specific service information. Exact diagnosis and repair steps vary by make, engine family, and model year.

Last reviewed: 2026-04-10

Reference: Open reference

P0114 - P0114 Usually Means the Intake Air Temperature Signal Is Intermittent or Erratic