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 too hot on one side of the engine.
The intake air temperature sensor measures the temperature of the air entering the engine. If this temperature is too high, it can affect engine performance.
The P117F code indicates that the intake air temperature sensor for Bank 2 is reading a temperature that is higher than expected. This could be due to a faulty sensor, wiring issues, or actual high intake air temperatures.
• Check Engine Light is on
• Poor engine performance
• Reduced fuel efficiency
• Faulty intake air temperature sensor
• Wiring or connection issues
• Actual high intake air temperatures due to engine conditions
Intake Air Temperature Sensor: A sensor that measures the temperature of the air entering the engine.
Bank 2: The side of the engine opposite to Bank 1, typically the side without cylinder 1.
• Use an OBD-II scanner to confirm the code
• Inspect the intake air temperature sensor and its wiring
• Check for any air leaks or blockages in the intake system
• Replace the intake air temperature sensor if faulty
• Repair or replace damaged wiring or connectors
• Ensure the intake system is free of blockages or leaks
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• BMW 3 Series
• Audi A4
• Mercedes-Benz C-Class
• Regularly inspect and maintain the intake system
• Ensure sensors are clean and functioning properly
• Check for proper engine cooling
Sensor Issue
• Do not ignore the Check Engine Light; have it diagnosed promptly.
• Regular maintenance can prevent sensor issues.
Check with your vehicle manufacturer for specific warranty coverage on sensors.
This code has been commonly reported in vehicles with turbocharged engines due to higher intake temperatures.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Driving with a faulty sensor can lead to increased emissions and reduced fuel efficiency.
• Engine at operating temperature
• Vehicle in a controlled environment
The intake air temperature sensor is typically located in the intake manifold or air intake duct.
Q: Can I drive with a P117F code?
A: While the car may still run, it's best to address the issue to prevent further engine problems.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of the intake system can help prevent this issue.
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