P1112
Intake Air Temperature Sensor Intermittent
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$6–33 (est.)
Symptoms
- Unstable engine operation at idle
- Increased fuel consumption
- Reduced engine power
- Check Engine Light Illuminates
- Incorrect air temperature readings
Causes
- Intake Air Temperature (IAT) Sensor Malfunction
- Damaged or corroded wires and connectors
- Poor contact in the electrical circuit
- Sensor contamination
- Problems with the engine ECU
How to Fix
- Check the condition of the IAT sensor and its connector
- Test sensor resistance at different temperatures
- Check the integrity of wiring and connections
- Clean the sensor from dirt if necessary
- Replace the sensor if a fault is detected