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Engine-Codes – Generic – P2199

P2199 Code - Intake Air Temperature Sensor 1/2 Correlation

Quick Answer

The diagnostic trouble code P2199 indicates a problem with the correlation between Intake Air Temperature Sensor 1 and Intake Air Temperature Sensor 2 in the vehicle's engine. Common causes include Faulty Intake Air Temperature Sensor, Wiring or connector issues, Vacuum leak. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2199 indicates Intake Air Temperature Sensor 1/2 Correlation.
Common causes
Common causes include Faulty Intake Air Temperature Sensor, Wiring or connector issues, Vacuum leak.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P2199 Description

The diagnostic trouble code P2199 indicates a problem with the correlation between Intake Air Temperature Sensor 1 and Intake Air Temperature Sensor 2 in the vehicle's engine. These sensors play a crucial role in providing the engine control module (ECM) with accurate temperature readings of the incoming air. The ECM uses this information to adjust the air-fuel mixture for optimal combustion and engine performance. When there is a correlation issue between the two sensors, it can lead to incorrect readings being sent to the ECM, resulting in poor engine performance, reduced fuel efficiency, and increased emissions.

OBDII Code P2199 - Intake Air Temperature Sensor 1/2 Correlation
P2199 Code - Intake Air Temperature Sensor 1/2 Correlation

Common Causes of P2199

  1. Faulty Intake Air Temperature Sensor
  2. Wiring or connector issues
  3. Vacuum leak
  4. ECM malfunction
  5. Incorrect sensor placement or installation

Symptoms of P2199

  1. Rough idling
  2. Hesitation during acceleration
  3. Stalling
  4. Decreased power output
  5. Increased fuel consumption

How to Fix P2199

  1. Perform a visual inspection of the Intake Air Temperature Sensors, wiring, and connectors for any signs of damage or wear.
  2. Use a multimeter to test the resistance and voltage output of each sensor to determine if they are functioning within the manufacturer's specifications.
  3. Check for any vacuum leaks in the intake system that could affect the sensors' readings.
  4. If a faulty sensor is identified, replace it with a new OEM or high-quality aftermarket sensor.
  5. Clear the diagnostic trouble codes and reset the ECM to ensure the issue has been resolved.

Cost to Fix P2199

The typical repair costs for addressing the Intake Air Temperature Sensor 1/2 Correlation code can range from $150 to $400, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary depending on various factors. It's recommended to inquire about local rates to obtain a more accurate estimate for this repair.

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Code P2199 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2199 Code

1. What are the common symptoms of OBDII code P2199?

- Common symptoms include poor engine performance, reduced fuel efficiency, and the illumination of the check engine light.

2. What does the OBDII code P2199 indicate?

- This code indicates a correlation issue between the intake air temperature sensor 1 and 2 in the engine's intake system.

3. What are the possible causes of OBDII code P2199?

- Possible causes include a faulty intake air temperature sensor, damaged wiring or connectors, intake air leaks, or issues with the engine control module.

4. How can I diagnose the intake air temperature sensor 1/2 correlation issue?

- Diagnosing this issue typically involves using an OBDII scanner to retrieve the specific fault code, conducting a visual inspection of the intake air temperature sensors, and checking for any wiring or connector damage.

5. Can I drive my vehicle with OBDII code P2199?

- While the vehicle may still be operable with this code, it is recommended to address the issue promptly to prevent potential damage to the engine and to restore optimal performance.

6. How can I repair OBDII code P2199?

- Repairing this code may involve replacing the faulty intake air temperature sensor, repairing damaged wiring or connectors, fixing any intake air leaks, or reprogramming the engine control module.

7. Will resetting the check engine light resolve OBDII code P2199?

- Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing the intake air temperature sensor 1/2 correlation problem.

8. Are there any DIY tips for troubleshooting OBDII code P2199?

- DIY tips include visually inspecting the intake air temperature sensors and their connections, checking for any visible damage, and ensuring proper installation.

9. Does OBDII code P2199 affect emissions compliance?

- Yes, unresolved issues related to this code can potentially affect emissions compliance and may lead to a failed emissions test.

10. How can I prevent OBDII code P2199 from recurring?

- Regular maintenance, such as checking and replacing air filters as needed, inspecting intake system components, and addressing any engine performance issues promptly, can help prevent the recurrence of this code.

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