P1112 Hyundai Code - Manifold Differential Pressure Sensor
Quick Answer
The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. 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
- P1112 Hyundai indicates Manifold Differential Pressure Sensor.
- 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 P1112 Hyundai Description
What are the Possible Causes of the DTC P1112 Hyundai?
- 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 P1112 Hyundai?
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 P1112 Hyundai 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 P1112 Hyundai Code
1. What does the OBDII code P1112 mean for a Hyundai?
The P1112 code indicates an issue with the Manifold Differential Pressure Sensor, which monitors the pressure difference in the intake manifold to optimize engine performance.
2. What are the common symptoms of a P1112 code on a Hyundai?
Symptoms may include poor engine performance, reduced fuel efficiency, rough idling, difficulty starting, and the Check Engine Light being illuminated.
3. What causes the P1112 code to appear in a Hyundai?
Common causes include a faulty Manifold Differential Pressure Sensor, damaged wiring or connectors, intake manifold leaks, or a clogged air filter.
4. How can I fix the P1112 code on my Hyundai?
Start by inspecting the sensor, wiring, and connectors for damage. Replace the sensor if it’s faulty, fix wiring issues, and address any intake manifold leaks or air filter obstructions.
5. Can I drive my Hyundai with the P1112 code active?
It’s not recommended to drive long distances with this code active, as it can lead to reduced performance and potentially cause further engine damage.
6. How do I know if the Manifold Differential Pressure Sensor is faulty?
A faulty sensor may cause erratic readings, poor engine performance, or make the vehicle fail to respond properly under load. Testing the sensor with a multimeter or scan tool can confirm its condition.
7. How much does it cost to repair the P1112 code on a Hyundai?
Repair costs vary, but replacing the sensor generally ranges from $100 to $300, depending on the model and labor rates. Additional repairs for wiring or manifold leaks may increase the cost.
8. What tools are needed to diagnose the P1112 code on a Hyundai?
You’ll need an OBDII scanner, a multimeter for testing electrical connections, and basic hand tools for inspecting and replacing components.
9. Can a dirty air filter cause the P1112 code on a Hyundai?
Yes, a dirty or clogged air filter can restrict airflow, affecting manifold pressure readings and triggering the P1112 code.
10. How do I prevent the P1112 code from recurring on my Hyundai?
Regular maintenance, including replacing the air filter, inspecting wiring, and ensuring the intake manifold is free from leaks, can help prevent this code from recurring.
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