Diagnostic code
P0113 Code: Intake air temperature sensor high signal
P0113 is best read as a intake air temperature evidence trail. In this case the important clues are dirty or failed airflow, pressure, or temperature sensor; air leak after the measured airflow point; wiring, connector, or reference voltage
Educational reference only, not professional repair advice. A fault code is a starting point, not a diagnosis. Vehicle symptoms, live data, service history, and manufacturer-specific procedures change the repair path. If the check engine light is flashing, the vehicle is overheating, brakes or steering feel unsafe, fuel odor or smoke appears, or the engine is running poorly, stop driving when safe and get professional help.
Sources
Safety limits for this page
Use this page as a reference only. Do not perform hazardous repairs from a web guide. Stop when safe and contact a qualified mechanic if any warning condition below applies.
- Opening fuel lines, fuel tanks, or pressurized fuel components
- Flashing check engine light
- Overheating, smoke, or strong fuel smell
- Loss of power, severe shaking, unsafe braking, or unsafe steering
- Fuel odor, visible leak, smoke, or hard starting after refueling
Can I drive?
A short local trip may be possible if the vehicle runs normally and the check engine light is solid. Avoid highway driving, towing, hard acceleration, or ignore-the-light driving until P0113 is diagnosed, especially if rough running, overheating, fuel smell, or power loss appears.
Repair range
$70-$650
Scanner note
OBD-II scanner with live airflow, temperature, and fuel trim data
Plain-English Meaning
P0113 is best read as a intake air temperature evidence trail. In this case the important clues are dirty or failed airflow, pressure, or temperature sensor; air leak after the measured airflow point; wiring, connector, or reference voltage problem. The code narrows the system to test, but the repair should follow live data, visual inspection, and the exact symptoms.
Common Causes
Common possibilities (most common first):
- Dirty or failed airflow, pressure, or temperature sensor
- Air leak after the measured airflow point
- Wiring, connector, or reference voltage problem
- Restricted air filter or intake duct issue
- Throttle body data that does not match airflow readings
Order varies by make, model, mileage, and operating conditions. Do not replace parts based only on this list — verify with a scan tool and qualified mechanic.
Symptoms
- Check engine light
- Hesitation or stumble
- Poor fuel economy
- Stalling after startup
Diagnostic Steps
- 1Inspect the air filter and intake ducting
- 2Check the sensor connector for corrosion or loose pins
- 3Compare live sensor values to engine temperature and load
- 4Look for intake leaks after the airflow sensor
- 5Test reference voltage, ground, and signal before replacing the sensor
Confusable And Related Codes
P0171
Compare →P0171 means the engine computer is adding extra fuel because bank 1 is running lean. In plain terms, the engine is getting too much air, not enough fuel, or incorrect sensor information. Vacuum leaks, intake leaks, fuel delivery issues, and
P0174
Compare →P0174 means bank 2 is running lean and the computer is adding fuel to compensate. It is common on V-style engines when unmetered air enters one side of the intake, fuel delivery is weak, or the mass airflow reading is inaccurate for the act
P0101
Compare →P0101 means the mass airflow sensor signal does not match what the engine computer expects for current operating conditions. The sensor may be dirty or faulty, but intake leaks, wiring issues, and restricted airflow can create the same mism
P0507
Compare →P0507 means the engine idle speed is higher than the computer is trying to command. Extra air entering the engine, throttle body buildup, idle control faults, or an idle relearn issue can all create a high idle condition.
FAQ
What does P0113 mean in plain English?
P0113 means the computer saw a intake air temperature sensor high signal. It identifies the system to test first, not a guaranteed failed part.
Can I drive with P0113?
Possibly for a short local trip if the vehicle runs normally and the light is solid. Stop driving if the light flashes, the engine overheats, power drops, or strong fuel smell appears.
Is P0113 always caused by one part?
No. Several electrical, sensor, airflow, fuel, mechanical, or wiring issues can set the same code, so testing should confirm the cause before parts are replaced.
This page is educational and is not a substitute for hands-on vehicle diagnosis.