What usually causes it
- A short in the sensor wiring or plug
- A failed intake air temperature sensor
- Water or rust in the plug
- A bad air flow sensor (MAF), because many cars build this sensor into it
P0112Starts at: OK to drive, fix when convenient
Intake air temperature sensor signal is too low
The intake air temperature sensor reads how warm the air going into the engine is. Its signal looks odd, so the computer may think the air is hotter than it is.
Check this first
Look at the plug on the sensor and on the air flow sensor for rust, water or a loose fit.
What to watch for
- Poor gas mileage
- Rough idle or hesitation
- A flashing check engine light, which means a bad misfire
Can I keep driving?
We rate P0112 as OK to drive, fix when convenient, as a starting point. Keep an eye on the signs below. If the light starts flashing, stop driving soon.
Quick answers about P0112
What does P0112 mean?
Intake air temperature sensor signal is too low. The intake air temperature sensor reads how warm the air going into the engine is. Its signal looks odd, so the computer may think the air is hotter than it is.
Can I keep driving with P0112?
We rate P0112 as OK to drive, fix when convenient, as a starting point. Keep an eye on the signs below. If the light starts flashing, stop driving soon.
What usually causes P0112?
The most common causes, in order: A short in the sensor wiring or plug; A failed intake air temperature sensor; Water or rust in the plug; A bad air flow sensor (MAF), because many cars build this sensor into it.
Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.