P0113 Intake Air Temperature Sensor 1 Circuit High
P0113 is a generic OBD2 powertrain code. It means “Intake Air Temperature Sensor 1 Circuit High” — the same on every make and model, because the definition comes from the SAE J2012 standard rather than from the carmaker.
Ask the AI about P0113 on your car- System
- Powertrain (P)
- Code type
- Generic (SAE)
- Range
- P01xx
- Urgency
- Low
What P0113 means
The intake air temperature (IAT) sensor — often built into the MAF sensor — reports how warm the incoming air is. P0113 means its signal is too high, so it reads implausibly cold (typically an open circuit); P0112 means the signal is too low, so it reads implausibly hot.
Symptoms
- Usually nothing beyond the lamp
- Slightly rough cold starts or worse fuel economy
Most likely causes
- A connector left unplugged or loose after an air-filter change — the classic cause of P0113
- Damaged wiring
- A failed sensor (or the MAF sensor, where the two are one part)
What to check first
- Make sure the MAF/IAT connector is fully seated
- On a cold engine, compare the intake air temperature with the outside temperature — they should be close
- Inspect the wiring before replacing the sensor
Can I keep driving with P0113?
Safe to drive — fix it when convenient
Yes. The computer substitutes a default value; fix it when convenient.
What the wording tells you
“High” here is electrical: the module saw the voltage in this circuit stay above its expected window. The usual causes are a short to voltage, a broken ground, an unplugged connector (many sensors read high when disconnected) — or the component itself.
How P0113 breaks down
Powertrain. Engine, transmission, fuel and emissions — the codes behind the check engine lamp.
Generic code: defined by SAE, the same on every make.
Fuel & air metering.
The specific fault within this range.
Where to look: Fuel & air metering
The sensors the engine computer meters fuel from — mass air flow, manifold pressure, intake air and coolant temperature, throttle position, oxygen sensors and fuel pressure — the fuel trims it learns from them, and the injector, fuel-pump and turbocharger circuits.
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Frequently asked
What does P0113 mean?
P0113 is a generic OBD2 powertrain code. It means “Intake Air Temperature Sensor 1 Circuit High” — the same on every make and model, because the definition comes from the SAE J2012 standard rather than from the carmaker. The intake air temperature (IAT) sensor — often built into the MAF sensor — reports how warm the incoming air is. P0113 means its signal is too high, so it reads implausibly cold (typically an open circuit); P0112 means the signal is too low, so it reads implausibly hot.
Can I drive with P0113?
Yes. The computer substitutes a default value; fix it when convenient.
What causes P0113?
A connector left unplugged or loose after an air-filter change — the classic cause of P0113; Damaged wiring; A failed sensor (or the MAF sensor, where the two are one part).
How do I clear P0113?
Fix the cause first, then clear it with any OBD2 scanner or app. Once the fault is gone the car also clears it on its own: the check engine lamp goes off after the self-test passes on three drive cycles in a row, and the stored code ages out after about 40 warm-ups. Clearing without a repair only hides it for a while — and resets the readiness monitors an emissions inspection looks at.
Is P0113 the same on every car?
Yes. P0113 is a generic SAE J2012 code, so its definition is identical on every make and model. What differs is the cause behind it and the repair procedure, which depend on the engine — that’s why the assistant on this page asks for your car.
Guides
Definitions: the generic SAE J2012 codes from Brimly’s offline dictionary (data version 2026.09). Causes and advice are general guidance for all makes — the service information for your car has the last word.