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Engine-Codes – Generic – P112E

P112E Code - Manifold Absolute Pressure To Throttle Angle Too Low Bank 1

Quick Answer

When the diagnostic code P112E appears, it indicates that there is an issue with the communication between the Manifold Absolute Pressure (MAP) sensor and the Throttle Angle sensor in Bank 1 of the engine. Common causes include Faulty Manifold Absolute Pressure sensor, Faulty Throttle Angle sensor, Wiring or connection issues between the sensors. 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 indicates Manifold Absolute Pressure To Throttle Angle Too Low Bank 1.
Common causes
Common causes include Faulty Manifold Absolute Pressure sensor, Faulty Throttle Angle sensor, Wiring or connection issues between the sensors.
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 06, 2024
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Code P112E Description

When the diagnostic code P112E appears, it indicates that there is an issue with the communication between the Manifold Absolute Pressure (MAP) sensor and the Throttle Angle sensor in Bank 1 of the engine. The Manifold Absolute Pressure sensor measures the pressure inside the intake manifold, while the Throttle Angle sensor monitors the position of the throttle valve. When the signal between these two sensors is too low, it can lead to a variety of performance issues in the vehicle.

OBDII Code P112E - Manifold Absolute Pressure To Throttle Angle Too Low Bank 1
P112E Code - Manifold Absolute Pressure To Throttle Angle Too Low Bank 1

Common Causes of P112E

  1. Faulty Manifold Absolute Pressure sensor
  2. Faulty Throttle Angle sensor
  3. Wiring or connection issues between the sensors
  4. Vacuum leaks in the intake system
  5. Engine computer (ECU) malfunction

Symptoms of P112E

  1. Reduced engine power
  2. Poor fuel efficiency
  3. Rough idling or stalling
  4. Check Engine Light illuminated
  5. Difficulty starting the engine

How to Fix P112E

  1. Begin by performing a visual inspection of the sensors and their wiring to check for any obvious signs of damage or disconnection.
  2. Use a diagnostic scan tool to read and clear the trouble codes, as well as to monitor the sensor data to pinpoint the exact cause of the issue.
  3. Test the Manifold Absolute Pressure sensor and Throttle Angle sensor using a multimeter to check for proper voltage and resistance readings.
  4. Replace any faulty sensors or repair any damaged wiring or connections as needed.
  5. Clear the trouble codes and perform a test drive to ensure that the issue has been resolved.

Cost to Fix P112E

The cost of repairing the P112E diagnostic code can vary depending on the specific cause of the issue. Typically, replacing a faulty sensor can range from $100 to $300, while addressing wiring or connection issues may cost around $50 to $150. Labor costs at an auto repair shop can add an additional $80 to $150 per hour. It's recommended to consult with a professional mechanic for a more accurate estimate based on your vehicle's make and model.

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Code P112E Information for Specific Makes

  • P112E BMW — Manifold Absolute Pressure To Throttle Angle Too Low Bank 1
  • P112E Buick — Intake Air Temperature Sensor 3 Circuit Intermittent
  • P112E Cadillac — Intake Air Temperature Sensor 3 Circuit Intermittent
  • P112E Chevrolet — Intake Air Temperature Sensor 3 Circuit Intermittent
  • P112E GMC — Intake Air Temperature Sensor 3 Circuit Intermittent
  • P112E MINI — Manifold Absolute Pressure To Throttle Angle Too Low Bank 1
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 P112E Code

1. What are common symptoms of OBDII code P112E (Manifold Absolute Pressure To Throttle Angle Too Low Bank 1)?

- Common symptoms include reduced engine power, rough idling, poor acceleration, and potential stalling.

2. What are the possible causes of OBDII code P112E?

- Possible causes include a faulty manifold absolute pressure sensor, issues with the throttle position sensor, vacuum leaks, or problems with the throttle body.

3. How can I diagnose the cause of OBDII code P112E?

- To diagnose the issue, you can use a diagnostic scanner to retrieve the code and then perform a visual inspection of the sensors and wiring related to the manifold absolute pressure and throttle position.

4. Can driving with OBDII code P112E cause further damage to my vehicle?

- Continuing to drive with this code may lead to decreased fuel efficiency, engine performance issues, and potential damage to other components over time.

5. What are some repair tips for addressing OBDII code P112E?

- Repair tips include checking and cleaning the throttle body, inspecting and testing the manifold absolute pressure sensor, and ensuring there are no vacuum leaks in the system.

6. Is it safe to continue driving my vehicle with OBDII code P112E?

- While the vehicle may still be operable with this code, it is not recommended to continue driving it as it can lead to further issues and potential safety concerns.

7. How much does it typically cost to repair OBDII code P112E?

- The cost of repair can vary depending on the exact cause of the code, but it may range from $100 to $500 or more, including parts and labor.

8. Can I reset OBDII code P112E on my own?

- Yes, you can reset the code using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

9. How long does it take to repair OBDII code P112E?

- The repair time can vary depending on the specific cause of the code and the complexity of the repair, but it may take anywhere from 1 to 4 hours in a typical scenario.

10. Are there any preventive measures I can take to avoid OBDII code P112E in the future?

- Regular maintenance of the throttle body, sensors, and vacuum system, along with prompt attention to any engine performance issues, can help prevent the occurrence of this code in the future.

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