P0113 Code: Intake Air Temperature (IAT) Sensor Circuit High Input

🟢 Low severity · drivable

Safe to drive. The computer just gets a wrong intake-air-temperature reading, which may cause slightly rich running.

What P0113 means

The intake air temperature (IAT) sensor is reporting an abnormally high voltage (or an open circuit), which the computer reads as very cold intake air. The IAT helps the computer adjust the fuel mixture for air temperature.

Symptoms

Check engine light is on
Possible slightly rich running
Possible hard starting in some conditions
Often no noticeable symptoms

Common causes

most common: Faulty IAT sensor (open circuit)
common: Loose or corroded IAT connector
less common: Damaged wiring to the IAT sensor

How to fix it

Fix	DIY?	Typical cost
Inspect and clean the IAT sensor connector	Yes	$0–10
Replace the IAT sensor	Yes	$20–80
Repair damaged IAT sensor wiring	Mechanic	$50–150

Frequently asked questions

Can I drive with a P0113 code?

Yes. It's a minor sensor fault. The engine may run slightly rich, but it's not an emergency.

What is the most common cause of P0113?

A faulty IAT sensor or a loose connector. It's usually a cheap and simple fix.

How much does it cost to fix a P0113?

Typically $20–$80 for a new IAT sensor, which is usually the whole fix.

Related codes

P0112

P0112 Code: Intake Air Temperature Sensor 1 Circuit Low

P0101

P0101 Code: Mass or Volume Air Flow (MAF) Sensor Circuit Range/Performance

P0110

P0110 Code: Intake Air Temperature Sensor 1 Circuit

P0113 by vehicle brand

Causes and repair costs for P0113 differ between makes. Pick your brand for the specifics.

P0113 on a Mercedes-Benz

Volkswagen

P0113 on a Volkswagen

Updated 2026-08. This page is informational and not a substitute for professional diagnosis.