Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car has two sensors that check how hot or cold the air going into the engine is. This code means that these two sensors are not agreeing with each other.
The engine control module (ECM) compares the readings from two intake air temperature sensors. If the readings are not within a specified range of each other, the ECM triggers the P2199 code.
The P2199 code is set when the ECM detects a discrepancy between the readings of Intake Air Temperature Sensor 1 and Sensor 2. These sensors measure the temperature of the air entering the engine, which is crucial for optimal combustion and engine performance.
• Check Engine Light is on
• Poor fuel economy
• Engine performance issues
• Faulty intake air temperature sensor
• Wiring issues such as short circuits or open circuits
• ECM malfunction
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors of the intake air temperature sensors.
• Test the sensors for proper operation using a multimeter.
• Replace the faulty intake air temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and clean air intake components.
• Ensure proper maintenance of electrical connections.
• Use high-quality replacement parts.
Sensor Issue
• Do not ignore the Check Engine Light.
• Consult a professional mechanic if unsure about repairs.
Check vehicle warranty for coverage on sensors and ECM.
This code has been commonly associated with sensor failures and wiring issues in vehicles with dual intake air temperature sensors.
Moderate – It should be addressed soon to prevent further engine performance issues.
Driving with a malfunctioning sensor can lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle stationary or under light load
The intake air temperature sensors are typically located in the air intake duct or manifold.
Q: Can I drive my car with a P2199 code?
A: It's possible, but not recommended as it can lead to poor engine performance and increased fuel consumption.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are complete.
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