P0114 code meaning
Intake Air Temperature Sensor 1 Circuit Intermittent/Erratic Bank 1
Powertrain system Generic code P01xx codes Check engine light
What P0114 means
Intake air temperature sensor 1 is the first air temperature sensor in the intake path; depending on the vehicle it is built into the mass air flow sensor, mounted near the air filter or, on some naturally aspirated GM engines, fitted in the intake manifold. Most versions are NTC thermistors in a 5 V divider: the hotter the air, the lower the signal voltage. P0114 covers an unsteady signal. Air temperature changes slowly, so rapid jumps point to the wiring rather than the air. Ford counts short excursions out of range that are each too brief for P0112/P0113 and sets the code after ten of them in one drive cycle. GM evaluates noise within the valid range: if the readings taken every 100 ms add up to more than 80 °C of movement within one second, in four of five seconds, the sample counts as failed. GM needs two trips. Typical culprit is a loose contact that opens with engine movement.
P0114 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.3 to 2 hours
- Clears after repairAfter a drive cycle
Symptoms of P0114
- Check engine light on
- Usually no noticeable symptoms
- Occasional brief stumble or rough idle possible
Common causes of P0114
- Most likelyLoose contact at the connector (corrosion, weak terminal tension)
- Most likelyPartly broken wire that opens with engine movement
- PossibleSensor with internal contact problem
- Less likelyElectrical interference or ground fault
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Intake air temperature sensorIntake air temperature sensor wiringMass air flow sensor
What each part of P0114 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 1 | Area: fuel and air metering. |
| 14 | The exact fault in that area. |
What to do next
- Note P0114 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0114
What does P0114 mean?
P0114 means "Intake Air Temperature Sensor 1 Circuit Intermittent/Erratic Bank 1". Intake air temperature sensor 1 is the first air temperature sensor in the intake path; depending on the vehicle it is built into the mass air flow sensor, mounted near the air filter or, on some naturally aspirated GM engines, fitted in the intake manifold. It is a generic code, so it means the same on every make.
Is it safe to drive with P0114?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0114 fail an emissions test?
Yes, it can. P0114 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0114 to fix?
Difficulty: medium. A typical repair takes 0.3 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P0114 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.