AutoCodes – Acura – P2199 Acura

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

Quick Answer

Two Engine Coolant Temperature (ECT) sensors and two Intake Air Temperature (IAT) sensors are used by the Powertrain Control Module (PCM). Common causes include Faulty Intake Air Temperature (IAT) 2 Sensor, Intake Air Temperature 2 Sensor harness is open or shorted, Intake Air Temperature 2 Sensor circuit poor electrical connection. 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 Acura indicates Intake Air Temperature Sensor 1/2 Correlation.
Common causes: Common causes include Faulty Intake Air Temperature (IAT) 2 Sensor, Intake Air Temperature 2 Sensor harness is open or shorted, Intake Air Temperature 2 Sensor circuit poor electrical connection.
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.

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Code Popularity 4,303

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 18, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2199 Acura Description

Two Engine Coolant Temperature (ECT) sensors and two Intake Air Temperature (IAT) sensors are used by the Powertrain Control Module (PCM). When the engine is stopped and enough time has passed, the temperatures of each sensor will equalize to the ambient temperature. The IAT sensor 2 failure is detected by comparing the sensor value difference of IAT sensor 1 and IAT sensor 2 after ECT sensor 1, ECT sensor 2, and IAT sensor 1 correlations are judged as normal. If the temperature difference between IAT sensor 1 and IAT sensor 2 exceeds a normal range, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P2199 Acura - Intake Air Temperature Sensor 1/2 Correlation - AutoCodes.com — P2199 Acura Code - Intake Air Temperature Sensor 1/2 Correlation

What does this mean?

What are the Possible Causes of the DTC P2199 Acura?

Faulty Intake Air Temperature (IAT) 2 Sensor
Intake Air Temperature 2 Sensor harness is open or shorted
Intake Air Temperature 2 Sensor circuit poor electrical connection

How to Fix the DTC P2199 Acura?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2199 Acura code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 Acura Code

1. What is OBDII code P2199 in Acura vehicles?

Code P2199 indicates an issue with the Intake Air Temperature Sensor 1/2 correlation in the Acura's engine.

2. What are the common symptoms of a P2199 code in an Acura?

Common symptoms include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling.

3. What are the possible causes of a P2199 code in an Acura?

Potential causes include a faulty intake air temperature sensor, a vacuum leak, a dirty air filter, issues with the mass airflow sensor, or problems with the intake air temperature sensor wiring.

4. How can I diagnose the P2199 code in my Acura?

Diagnosing the P2199 code involves using an OBDII scanner to retrieve the specific code, checking the intake air temperature sensor for proper function, inspecting the air intake system for leaks, and testing the sensor wiring for continuity.

5. Can I continue driving my Acura with a P2199 code?

It is not recommended to drive your Acura with a P2199 code as it can lead to further damage to the engine and negatively impact performance and fuel efficiency.

6. How can I repair a P2199 code in my Acura?

Repairing a P2199 code may involve replacing the intake air temperature sensor, repairing any vacuum leaks, cleaning or replacing the air filter, addressing issues with the mass airflow sensor, or repairing faulty sensor wiring.

7. Will resetting the trouble codes make the P2199 code disappear?

Resetting the trouble codes may temporarily clear the P2199 code, but if the underlying issue is not addressed and repaired, the code is likely to reappear.

8. How much does it cost to fix a P2199 code in an Acura?

The cost of fixing a P2199 code can vary depending on the exact cause of the issue, but it may involve parts and labor costs ranging from $100 to $500 or more.

9. Can a DIY enthusiast repair a P2199 code in an Acura?

DIY enthusiasts with the necessary tools and knowledge can attempt to repair a P2199 code themselves, but it is recommended to consult a professional mechanic for accurate diagnosis and proper repair.

10. How often does the intake air temperature sensor need to be replaced in an Acura?

The intake air temperature sensor typically does not need frequent replacement unless it malfunctions, but it is recommended to follow the manufacturer's recommended maintenance schedule for optimal performance.