P0114: 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. 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.

Bank 1 is the side of the engine with cylinder 1. Inline engines only have this bank.

Symptoms

• Check engine light on
• Usually no noticeable symptoms
• Occasional brief stumble or rough idle possible

Most likely causes

• Loose contact at the connector (corrosion, weak terminal tension)
• Partly broken wire that opens with engine movement
• Sensor with internal contact problem
• Electrical interference or ground fault

What to check, in order

Start with the simplest. You can tick off each step.

1. With the engine cold, compare the reading with the outside temperature
2. Gently move the wiring with the engine running and watch whether the reading changes.
3. Check the connector
4. Measure the sensor's resistance against the manufacturer's specification
5. Check power and ground before replacing it

Good to know

• Repair difficulty: medium
• It affects emissions.

What each character of P0114 means

• P: Powertrain: engine and transmission
• 0: Generic code: same on every make
• 1: Air and fuel
• 14: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0114?

Yes, you can normally keep driving and take it to a repair shop when convenient.

What causes code P0114?

The most common causes are: loose contact at the connector (corrosion, weak terminal tension); partly broken wire that opens with engine movement; sensor with internal contact problem.

Related codes

• P0111Intake Air Temperature Sensor 1 Circuit Range/Performance Bank 1
• P0112Intake Air Temperature Sensor 1 Circuit Low Bank 1
• P0113Intake Air Temperature Sensor 1 Circuit High Bank 1
• P0110Intake Air Temperature Sensor 1 Circuit Bank 1
• P0099Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic Bank 1

Sources

• law.cornell.edu: 13 CCR 1968.2
• newtonnet.co.uk: fordobd2012
• fordservicecontent.com: OBD Operations Summary Gasoline 2020 2023
• gsi.ext.gm.com: 18OBDG04 Engine Diagnostics

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.