Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer thinks the air going into the engine is way too hot, which doesn't make sense.
This code is triggered when the intake air temperature sensor reports a temperature reading that is too high to be believable.
The P111E code indicates that the intake air temperature (IAT) sensor 1 on bank 1 is sending a signal to the engine control module (ECM) that the air temperature is at an implausibly high level. This could be due to a faulty sensor, wiring issues, or a problem with the ECM itself.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Faulty intake air temperature sensor
• Wiring issues such as shorts or open circuits
• Faulty engine control module (ECM)
ECM: Engine Control Module
IAT: Intake Air Temperature
• Use an OBD-II scanner to confirm the code
• Inspect the intake air temperature sensor and its wiring
• Test the sensor with a multimeter
• Replace the intake air temperature sensor
• Repair or replace damaged wiring
• Update or replace the ECM if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect sensor connections
• Keep the air intake system clean
• Perform regular vehicle maintenance
Sensor Issue
• Do not ignore the Check Engine Light
• Have the vehicle inspected by a professional
• Avoid driving in extreme conditions until fixed
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code has been more commonly reported in vehicles with higher mileage and those exposed to extreme environmental conditions.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Ignoring this code may lead to increased emissions and potential failure of emissions tests.
• Engine running
• Vehicle at operating temperature
The intake air temperature sensor is typically located in the air intake ducting or near the air filter box.
Q: Can I drive with a P111E code?
A: It's possible to drive, but it's not recommended as it may affect engine performance and fuel efficiency.
Q: How do I reset the Check Engine Light after fixing the issue?
A: You can use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes.
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