BMW P112E Code:Manifold Absolute Pressure To Throttle Angle Too Low Bank 1
As a car owner, it can be frustrating to see a warning light pop up on your dashboard. One of the most common issues that BMW drivers face is the P112E diagnostic trouble code (DTC). This code indicates a problem with the manifold absolute pressure to throttle angle, which can cause a range of issues with your vehicle’s performance. In this article, we will explore the meaning, causes, symptoms, and fixes for the BMW P112E code. Whether you’re a DIY mechanic or planning to take your car to a professional, this guide will provide you with the information you need to solve the issue.
What Does the BMW P112E Code Mean?
The BMW P112E code is a diagnostic trouble code (DTC) that indicates a problem with the manifold absolute pressure (MAP) sensor to throttle angle correlation in bank 1 of the engine. This means that the engine control module (ECM) has detected that the MAP sensor is not providing the correct signal to the throttle position sensor (TPS), resulting in an incorrect throttle angle reading. This can cause a variety of issues, including poor engine performance, reduced fuel efficiency, and increased emissions. It is important to address this issue promptly to prevent further damage to the engine and ensure optimal vehicle performance.
Signs and Symptoms of BMW P112E Code
The BMW P112E code is a diagnostic trouble code (DTC) that indicates a problem with the manifold absolute pressure (MAP) sensor to throttle angle correlation. This issue can cause a variety of symptoms that can affect the performance and drivability of your BMW. Here are some of the most common signs and symptoms of the BMW P112E code:
- Check Engine Light: The most obvious symptom of the P112E code is the illumination of the check engine light on your BMW’s dashboard. This warning light indicates that there is a problem with the engine or emissions system and should not be ignored.
- Poor Acceleration: If you notice that your BMW is struggling to accelerate or feels sluggish, it could be a sign of the P112E code. This issue can cause a lack of power and reduced performance, making it difficult to drive your vehicle normally.
- Engine Stalling: In some cases, the P112E code can cause your BMW’s engine to stall or shut off unexpectedly. This can be dangerous if it happens while driving, as it can cause a loss of control and potentially lead to an accident.
- Reduced Fuel Efficiency: Another symptom of the P112E code is reduced fuel efficiency. This issue can cause your BMW to consume more fuel than usual, leading to higher costs at the gas pump.
- Rough Idle: If your BMW is experiencing a rough or unstable idle, it could be a sign of the P112E code. This issue can cause the engine to vibrate or shake, making it difficult to keep the vehicle running smoothly.
If you notice any of these symptoms in your BMW, it’s important to have the vehicle inspected by a qualified mechanic as soon as possible. Ignoring the P112E code can lead to further damage to your engine or emissions system, resulting in more costly repairs down the line. A professional mechanic can diagnose the issue and recommend the best course of action to fix the problem and get your BMW back to running smoothly.
Possible Causes of BMW P112E Code
The BMW P112E code is a diagnostic trouble code (DTC) that indicates a problem with the manifold absolute pressure (MAP) sensor to throttle angle correlation. This code is specific to BMW vehicles and can be caused by a variety of issues. Here are some of the possible causes of the BMW P112E code:
- Faulty MAP sensor: The MAP sensor measures the pressure inside the intake manifold and sends this information to the engine control module (ECM). If the sensor is faulty, it can send incorrect information to the ECM, which can cause the P112E code to appear.
- Dirty throttle body: The throttle body controls the amount of air that enters the engine. If it becomes dirty or clogged, it can affect the airflow and cause the P112E code to appear.
- Failed throttle position sensor: The throttle position sensor (TPS) measures the position of the throttle and sends this information to the ECM. If the TPS fails, it can cause the P112E code to appear.
- Wiring issues: Faulty wiring or connections between the MAP sensor, TPS, and ECM can cause the P112E code to appear.
- Failed ECM: In rare cases, a failed ECM can cause the P112E code to appear.
It is important to note that the above list is not exhaustive and there may be other causes of the BMW P112E code. It is recommended to have a professional mechanic diagnose the issue to determine the exact cause and recommend the appropriate solution.
Fixes for BMW P112E Code
The BMW P112E code indicates a problem with the manifold absolute pressure (MAP) sensor, which measures the pressure inside the intake manifold. When the MAP sensor readings are too low compared to the throttle angle, it can cause issues with the engine’s performance and fuel efficiency. Here are some possible fixes for the P112E code:
- Replace the MAP sensor: The most common fix for the P112E code is to replace the faulty MAP sensor. This will ensure that the sensor is accurately measuring the pressure inside the intake manifold and sending the correct signals to the engine control module (ECM).
- Clean the throttle body: A dirty or clogged throttle body can also cause the P112E code to appear. Cleaning the throttle body can help improve airflow and reduce the strain on the MAP sensor.
- Check for vacuum leaks: Vacuum leaks can cause a drop in pressure inside the intake manifold, which can trigger the P112E code. Inspect the vacuum lines and connections for any signs of damage or leaks.
- Inspect the wiring and connectors: Faulty wiring or connectors can also cause the P112E code to appear. Check the wiring and connectors for any signs of damage or corrosion, and repair or replace as necessary.
- Reset the ECM: In some cases, the P112E code may be triggered by a temporary glitch in the ECM. Resetting the ECM can clear the code and allow the system to recalibrate.
It’s important to note that the specific fix for the P112E code will depend on the underlying cause of the issue. If you’re not comfortable diagnosing and repairing the problem yourself, it’s best to take your BMW to a qualified mechanic for a proper diagnosis and repair. Ignoring the P112E code can lead to further engine damage and decreased performance.
How Much Will It Take to Fix the BMW P112E Code?
The cost of fixing the BMW P112E code can vary depending on the severity of the issue and the type of repair needed. In general, the cost can range from $100 to $500 or more. However, it’s important to note that this is just an estimate and the actual cost may be higher or lower depending on the specific circumstances.
The first step in fixing the P112E code is to diagnose the underlying issue. This may involve using a diagnostic tool to read the code and identify the problem. Once the issue has been identified, the repair process can begin.
The most common causes of the P112E code include a faulty throttle position sensor, a vacuum leak, or a problem with the intake manifold. Depending on the cause of the issue, the repair may involve replacing the sensor, repairing the vacuum leak, or replacing the intake manifold.
If your BMW is still under warranty, the cost of repairs may be covered. However, it’s important to check with your dealership or warranty provider to confirm coverage before proceeding with any repairs.
In summary, the cost of fixing the BMW P112E code can vary depending on the specific issue and the type of repair needed. It’s important to diagnose the underlying issue and seek expert recommendations to ensure a proper and effective repair.
Possible Causes and Fixes of Code
| Cause | Fix | Cost |
|---|---|---|
| Malfunctioning Manifold Absolute Pressure (MAP) sensor | Replace MAP sensor | $100-$300 |
| Throttle body issues | Clean or replace throttle body | $200-$500 |
| Vacuum leaks | Inspect and repair vacuum lines or intake manifold gasket | $100-$500 |
| Faulty wiring or connections | Inspect and repair wiring or connections | $100-$300 |
| Faulty Engine Control Module (ECM) | Replace ECM | $500-$1000 |
Preventing the BMW P112E Code
The BMW P112E code is a common issue that can occur in BMW vehicles. It is caused by a malfunction in the manifold absolute pressure (MAP) sensor, which can lead to a low throttle angle in bank 1. This can cause a variety of symptoms, including poor engine performance, reduced fuel efficiency, and even stalling. Fortunately, there are several preventive measures that can be taken to avoid this issue.
1. Regular Maintenance: One of the most important preventive measures is to ensure that your BMW vehicle is regularly maintained. This includes regular oil changes, air filter replacements, and other routine maintenance tasks. By keeping your vehicle in good condition, you can reduce the risk of issues like the P112E code occurring.
2. Check Engine Light: Another important preventive measure is to pay attention to your vehicle’s check engine light. If the light comes on, it is important to have your vehicle inspected by a qualified mechanic as soon as possible. Ignoring the check engine light can lead to more serious issues down the road, including the P112E code.
3. Quality Parts: When replacing parts in your BMW vehicle, it is important to use high-quality parts that are designed specifically for your vehicle. Using cheap or generic parts can lead to issues like the P112E code, as these parts may not be designed to work properly with your vehicle’s systems.
4. Driving Habits: Your driving habits can also play a role in preventing the P112E code. Avoiding aggressive driving, excessive idling, and other habits that can put stress on your vehicle’s systems can help to reduce the risk of issues like the P112E code occurring.
- Summary: To prevent the BMW P112E code, it is important to regularly maintain your vehicle, pay attention to the check engine light, use high-quality parts, and practice good driving habits. By taking these preventive measures, you can reduce the risk of issues like the P112E code occurring and keep your BMW vehicle running smoothly.
How Serious is the BMW P112E Code?
The BMW P112E code is a serious issue that should not be ignored. This diagnostic trouble code indicates that there is a problem with the manifold absolute pressure (MAP) sensor, which is responsible for measuring the amount of air entering the engine. When the MAP sensor fails to communicate with the throttle angle sensor, it can cause a variety of problems that can affect the performance and safety of your BMW vehicle.
Some of the symptoms of the BMW P112E code include reduced engine power, poor acceleration, rough idling, and stalling. If left unaddressed, this issue can lead to more severe problems such as engine damage or failure. It is important to have your BMW vehicle diagnosed and repaired as soon as possible to prevent further damage and ensure your safety on the road.
The causes of the BMW P112E code can vary, but some common culprits include a faulty MAP sensor, damaged wiring or connectors, or a malfunctioning throttle angle sensor. It is recommended to have a professional mechanic diagnose and repair the issue to ensure that it is properly resolved.
The cost of repairs for the BMW P112E code can also vary depending on the severity of the issue and the specific repairs needed. In some cases, the repairs may be covered under warranty, so it is important to check with your BMW dealership or warranty provider.
In conclusion, the BMW P112E code is a serious issue that should not be ignored. If you are experiencing any symptoms of this diagnostic trouble code, it is important to have your BMW vehicle diagnosed and repaired as soon as possible to prevent further damage and ensure your safety on the road.
Can You Still Drive with the BMW P112E Code?
It is not recommended to continue driving your BMW with the P112E code present. This code indicates a problem with the manifold absolute pressure (MAP) sensor and throttle angle, which can affect the engine’s performance and potentially cause further damage if left unaddressed.
Driving with the P112E code can result in reduced power and acceleration, poor fuel efficiency, and even stalling or engine misfires. Additionally, the issue may cause damage to other components of the engine, leading to more costly repairs in the future.
If you notice the P112E code on your BMW’s diagnostic system, it is best to have the issue addressed as soon as possible. This will not only prevent further damage to your vehicle but also ensure your safety on the road.
Consult with a certified BMW technician to diagnose and repair the issue. They can provide expert recommendations on the best course of action and ensure that your vehicle is running smoothly and safely.
Conclusion
If you are experiencing the BMW P112E code, it is important to address the issue promptly to avoid further damage to your vehicle. The code indicates a problem with the manifold absolute pressure to throttle angle being too low on bank 1. The causes of this issue can vary, but common culprits include a faulty throttle body, damaged wiring, or a malfunctioning sensor. Symptoms of the P112E code may include reduced engine power, poor acceleration, and stalling. To fix the issue, it is recommended to take your BMW to a certified mechanic who can diagnose and repair the problem. The cost of repairs will depend on the specific cause of the issue, and it is important to check if the repair is covered under warranty. Don’t ignore the P112E code, get it fixed as soon as possible to ensure the longevity and performance of your BMW.
FAQ
What does the BMW P112E code mean?
The BMW P112E code indicates that there is a problem with the manifold absolute pressure (MAP) sensor to throttle angle correlation on bank 1 of the engine.
What are the symptoms of the BMW P112E code?
The symptoms of the BMW P112E code may include reduced engine power, poor acceleration, rough idling, and stalling.
What are the common causes of the BMW P112E code?
The common causes of the BMW P112E code include a faulty MAP sensor, a damaged throttle body, a vacuum leak, or a wiring issue.
How is the BMW P112E code diagnosed?
The BMW P112E code can be diagnosed using an OBD-II scanner, which will read the code and provide information on the specific issue. A mechanic may also perform a visual inspection of the engine components and wiring to identify any obvious issues.
Can I still drive my BMW with the P112E code?
It is not recommended to drive your BMW with the P112E code, as it can cause further damage to the engine and potentially lead to more expensive repairs.
How much does it cost to fix the BMW P112E code?
The cost to fix the BMW P112E code can vary depending on the specific issue and the extent of the repairs needed. It is recommended to get a quote from a trusted mechanic or dealership for an accurate estimate.
Is the BMW P112E code covered under warranty?
Whether the BMW P112E code is covered under warranty will depend on the specific terms of your warranty. It is recommended to check with your dealership or warranty provider to determine if the repairs are covered.
Learn about other similar BMW Fault Codes from our BMW OBD 2 Fault Code List.