P2199 Buick Code - Intake Air Temperature Sensor 1-2 Not Plausible
Quick Answer
The following sensors are integrated within the Mass Air Flow/Multifunction Intake Air Sensor: IAT sensor 1, IAT sensor 2, Humidity sensor, MAF sensor, and BARO pressure sensor. Common causes include Faulty Intake Air Temperature (IAT) (integrated within Mass Air Flow/Multifunction Intake Air Sensor), Intake Air Temperature harness is open or shorted, Intake Air Temperature 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 Buick indicates Intake Air Temperature Sensor 1-2 Not Plausible.
- Common causes
- Common causes include Faulty Intake Air Temperature (IAT) (integrated within Mass Air Flow/Multifunction Intake Air Sensor), Intake Air Temperature harness is open or shorted, Intake Air Temperature 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.
Code P2199 Buick Description
The Intake Air Temperature (IAT) Sensor is a variable resistor that changes the voltage on the Engine Control Module (ECM) supplied 5 V signal circuit. The signal varies with the inlet air temperature in the sensor bore. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the absolute difference between the IAT sensor 1 and the IAT sensor 2 temperatures is greater than 55°C (99°F) for longer than 5 s.
What are the Possible Causes of the DTC P2199 Buick?
- Faulty Intake Air Temperature (IAT) (integrated within Mass Air Flow/Multifunction Intake Air Sensor)
- Intake Air Temperature harness is open or shorted
- Intake Air Temperature circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2199 Buick?
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 Buick 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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Frequently Asked Questions about P2199 Buick Code
1. What are the common symptoms of OBDII code P2199 in a Buick related to the intake air temperature sensor 1-2 not being plausible?
The common symptoms include poor engine performance, decreased fuel efficiency, rough idling, and potential stalling of the vehicle.
2. What are the possible causes of OBDII code P2199 in a Buick indicating an issue with the intake air temperature sensor 1-2?
The code P2199 can be triggered by a faulty intake air temperature sensor, a damaged sensor wiring harness, a dirty or clogged air filter, or a vacuum leak in the intake system.
3. How can I diagnose the issue causing OBDII code P2199 in my Buick?
To diagnose the issue, you can use an OBDII scanner to read the code, visually inspect the intake air temperature sensor and its wiring, check the air filter for dirt or clogs, and inspect the intake system for any vacuum leaks.
4. Can a dirty air filter trigger OBDII code P2199 in a Buick?
Yes, a dirty or clogged air filter can disrupt the airflow and affect the intake air temperature sensor readings, leading to the triggering of code P2199 in a Buick.
5. How can I repair OBDII code P2199 in my Buick related to the intake air temperature sensor 1-2 not being plausible?
The repair may involve cleaning or replacing the intake air temperature sensor, repairing or replacing the sensor wiring harness, cleaning or replacing the air filter, and fixing any vacuum leaks in the intake system.
6. Is it safe to continue driving my Buick with OBDII code P2199 indicating an issue with the intake air temperature sensor?
It is not recommended to drive the vehicle for an extended period with this code as it can lead to further engine issues and potentially affect the overall performance and efficiency of the vehicle.
7. Can a faulty intake air temperature sensor cause other OBDII codes to be triggered in a Buick?
Yes, a faulty intake air temperature sensor can cause other related codes to be triggered, such as P0110, P0111, or P0112, which are related to the intake air temperature sensor circuit.
8. How much does it typically cost to repair OBDII code P2199 in a Buick at a dealership or a repair shop?
The cost of repairing this code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor at a dealership or a repair shop.
9. Can I reset OBDII code P2199 in my Buick using an OBDII scanner, or does it require professional intervention?
You can try to reset the code using an OBDII scanner, but it is recommended to diagnose and repair the underlying issue first to prevent the code from reoccurring.
10. How often does OBDII code P2199 related to the intake air temperature sensor issue occur in Buick vehicles?
While the frequency may vary, this code is known to occur sporadically in Buick vehicles due to issues with the intake air temperature sensor and its associated components.
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