P112E Buick Code - Intake Air Temperature Sensor 3 Circuit Intermittent
Quick Answer
The Intake Air Temperature (IAT) sensor contains a semiconductor device which changes the resistance based on the temperature (a thermistor). Common causes include Faulty Intake Air Temperature sensor, Intake Air Temperature sensor harness is open or shorted, Intake Air Temperature 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
- P112E Buick indicates Intake Air Temperature Sensor 3 Circuit Intermittent.
- Common causes
- Common causes include Faulty Intake Air Temperature sensor, Intake Air Temperature sensor harness is open or shorted, Intake Air Temperature 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.
Code P112E Buick Description
What are the Possible Causes of the DTC P112E Buick?
- Faulty Intake Air Temperature sensor
- Intake Air Temperature sensor harness is open or shorted
- Intake Air Temperature sensor circuit poor electrical connection
How to Fix the DTC P112E 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 P112E 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 P112E Buick Code
1. What does the OBDII code P112E mean on a Buick?
P112E indicates an intermittent issue with the Intake Air Temperature Sensor 3 circuit, which monitors the temperature of air entering the engine.
2. What are the symptoms of code P112E on a Buick?
Common symptoms include poor engine performance, decreased fuel efficiency, rough idling, and possible illumination of the Check Engine Light.
3. What causes the P112E code to trigger on a Buick?
The code can be caused by a faulty Intake Air Temperature Sensor 3, damaged wiring or connectors, or a problem with the engine control module (ECM).
4. Can I drive my Buick with a P112E code?
While your car may still be drivable, continuing to drive with this code can result in reduced performance and potential long-term damage to the engine.
5. How do I fix the P112E code on my Buick?
Inspect and repair any damaged wiring or connectors, test and replace the Intake Air Temperature Sensor 3 if necessary, and clear the code with a scan tool.
6. Where is the Intake Air Temperature Sensor 3 located on a Buick?
The sensor is typically located near the intake manifold or within the air intake system, depending on your Buick model.
7. How much does it cost to fix code P112E on a Buick?
The repair cost can range from $50 to $200, depending on whether the issue is with the sensor, wiring, or labor costs at a repair shop.
8. Can a dirty air filter cause the P112E code on a Buick?
A dirty air filter is unlikely to directly cause this code, but it can contribute to airflow issues that affect sensor readings.
9. How can I prevent the P112E code from recurring on my Buick?
Regularly inspect and maintain the air intake system, including the sensor, wiring, and connectors, and replace any worn components promptly.
10. Will clearing the P112E code fix the problem on my Buick?
Clearing the code with a scan tool will reset the Check Engine Light, but the issue may return if the underlying cause isn’t addressed.
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