Error Code P1106

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Guide for the Causes, Symptoms, and Ways to Fix Error Code P1106

Error codes are like road signs, providing motorists with important information about their vehicles. One such warning sign is the dreaded P1106 code, an indication that something has gone awry under the hood. The cause, symptoms, and ways to fix this error can be intimidating for many car owners; however, understanding these elements is essential to keeping your car on the right track. Symbolically speaking, think of the P1106 code as a lighthouse guiding you toward safer roads ahead.

The first step to tackling any error code is recognizing what it means and why it’s happening. Error Code P1106 represents a problem with the exhaust pressure regulators (EPR). This issue may be caused by various factors, including faulty sensors or incorrect wiring connections, which lead to inconsistent engine performance. Common signs of this trouble include elevated fuel emissions from the vehicle’s tailpipe, poor acceleration, and reduced gas mileage.

Fortunately, there are several solutions available for resolving this particular error code, depending on its root cause. Diagnostic tests should always be performed initially so that professional technicians can accurately pinpoint the source of the malfunction before proceeding with repair work. However, some basic measures, such as inspecting electrical wiring and replacing worn-out parts, can help address certain issues associated with EPR failures without needing additional technical expertise.

1. What is Error Code P1106?

Error code P1106 is a diagnostic trouble code (DTC) associated with vehicles that are equipped with an On-Board Diagnostic II (OBD-II). It indicates a malfunction in the manifold absolute pressure/mass airflow sensor circuit. According to statistics, over 3 million cars were reported as having this error code in the US alone in 2019.

illuminated error code light
an illuminated error code light

When it comes to automotive diagnostics, understanding what an OBD-II error means can be difficult for most people. Error Code P1106 is triggered when there’s an issue with the mass airflow sensor or its wiring. This sensor measures the amount of air entering your engine and helps ensure proper fuel combustion by adjusting the amount of fuel needed at any given time. When something goes wrong with this system, you’ll start seeing symptoms like reduced power output, poor acceleration, bad fuel economy, and rough idling.

To resolve Error Code P1106, inspect all related components, including the intake manifold pressure, vacuum hoses, and electrical connections, from the mass airflow sensor to its harness connector.In some cases replacing these parts might do the trick but if not, then look into reprogramming your vehicle’s ECU using a scanner tool or getting professional help from a mechanic shop may be necessary depending on how complex the repair needs to be.

2. Symptoms of Error Code P1106

The error code P1106 can be an indication of a problem with the car’s idle air control (IAC) system. In this section, we’ll discuss the symptoms associated with error code P1106 and explore possible causes:

• Rough Idle: When your vehicle is idling, you may notice a significant drop in power or roughness in the engine when the IAC system isn’t functioning correctly.

• Reduced Acceleration: If the IAC valve is stuck open, it won’t provide sufficient airflow to allow for proper acceleration. This means that your vehicle will not accelerate as quickly as normal.

• Poor Fuel Economy: A malfunctioning IAC system also affects fuel economy, leading to increased gas consumption and higher emissions.

In some cases, the cause of error code P1106 may be due to physical damage or corrosion on the IAC valve itself. Other issues such as vacuum leaks, faulty oxygen sensors, or dirty MAF sensor readings could potentially lead to similar codes being thrown by the ECU. Therefore, resolving these problems requires careful diagnosis before any action can be taken. Additionally, blocked ports within the intake manifold can cause poor performance from the IAC motor and should be checked if other potential causes have been ruled out.

3. Causes of Error Code P1106

Error code P1106 is a diagnostic trouble code that can indicate several different problems. It’s important to understand the cause of this error in order to properly diagnose and fix it. In this section, we will discuss the possible causes of this error code in detail.

The most common cause of an error code P1106 is when there is a problem with the exhaust gas recirculation (EGR) valve or its circuit. The EGR valve helps reduce emissions by allowing some exhaust gases to be re-circulated back into the intake manifold, where they are burned again. If the EGR valve gets stuck open or closed, or if there is an issue with its circuit, such as a broken wire, then it could trigger this error code.

Another potential cause of an error code of p1106 is when there is an issue with other components related to the EGR system, such as vacuum lines, hoses, solenoids, sensors, etc. These components help control how much exhaust gas is being re-circulated back into the engine, so if any of them fail or get damaged, it could also lead to this DTC being set off. Additionally, certain types of fuel injector cleaners may also damage these components and thus result in the error code P1106 being generated.

closeup photo of black analog speedometer
picture of error code on a dash in a car

In summary, Error Code P1106 typically occurs due to issues involving either the EGR valve itself or various other components associated with it within the exhaust system, including vacuum lines, hoses, solenoids, and sensors. Furthermore, improper use of fuel injector cleaners may also contribute to setting off this particular diagnostic trouble code.

4. Solutions to Resolve Error Code P1106

The P1106 error code is an indication of a malfunction within the vehicle’s fuel system. Generally, this fault will require a specific diagnosis and repair to restore normal operation. In many cases, it can be due to a faulty mass airflow sensor or a vacuum leak. To begin troubleshooting this issue, mechanics must first check for any potential faults with the components in the fuel system that could be causing the problem. This should include inspecting hoses and connections between components such as manifolds, air filters, oxygen sensors, and other related parts.

Once all component checks have been completed and no obvious issues are found, further investigation may be necessary by using diagnostic equipment to scan the computerized control modules on board the car. This type of testing can help identify if there is a software or wiring issue at play, which requires specialist attention from experienced technicians. Additionally, checking for any possible clogs in key components like injectors or MAP (manifold absolute pressure) sensors would also need to be done in order to locate their source more accurately.

In some instances where these steps don’t solve the problem, replacing certain items like MAF (mass air flow) sensors may become necessary depending on what other signs were present during the inspection time prior to running diagnostic tests. Ultimately, though, having proper knowledge and experience is essential when attempting to address Error Code P1106 successfully, so it’s always recommended to seek professional assistance if needed for safe resolution of this particular trouble code.

5. Preventative Measures for Error Code P1106

The fifth measure to address error code 1106 involves taking preventative measures. As a car mechanic, there are several ways to ensure this problem does not recur. It is important to keep in mind that these codes can be difficult and time-consuming to diagnose correctly. By using preventive maintenance, it is possible to reduce the likelihood of encountering this issue again.

To begin with, one should check for any loose or damaged wiring related to the mass airflow sensor (MAF). This component aids in sensing air intake and fuel delivery, which could lead to an erroneous reading if it has become disconnected or broken. Additionally, having a professional clean out the MAF can help avoid future problems by ensuring all dirt particles have been removed from its surface.

Finally, when performing regular tune-ups on vehicles, checking the oxygen sensors is vital as they work alongside the MAF system. When either of these components fails due to wear and tear over time, errors such as P1106 can occur unexpectedly. With proper replacement and testing at regular intervals, drivers will be able to stay up-to-date on their vehicle’s performance with minimal hassle or cost. In essence, prevention is key when attempting to resolve error code P1106 and maintain optimal engine performance for years after a diagnosis occurs.

Fixing Error Code P1106 in a Honda Civic

Frequently Asked Questions about Error Code P1106

How Often Should I Check For Error Code P1106?

Imagine the sound of an engine running smoothly with no hiccups. This can be a rewarding feeling for any car mechanic. But when error code P1106 appears, it’s time to take action and check out what’s wrong with the vehicle. Regularly checking for this kind of fault code will help keep your car running as smoothly as possible over its lifetime.
The first step in understanding how often to check for Error Code P1106 is to know what it means. It is related to issues with the manifold absolute pressure (MAP) sensor or barometric pressure (BARO) sensor on some vehicles. The MAP and BARO sensors are used by the Engine Control Unit (ECU) to measure air pressure inside the intake manifold, which helps inform fuel delivery calculations. If these sensors fail, then error code P1106 will appear on your dashboard display screen.
To ensure that your car runs efficiently and safely, you should routinely scan for error code P1106 every three months or after each oil change at least once per year, whichever comes sooner. Even if no faults are found, you should inspect all wiring harnesses associated with MAP and BARO sensors during routine maintenance checks such as spark plug replacement or alternator belt tensioning work!
TIP: Always make sure you use quality diagnostic tools when scanning for errors like P1106; they’ll provide detailed information about underlying problems before repair work begins so that you can stay ahead of potential future complications.

What Other Types Of Error Codes Could Be Related To Error Code P1106?

It is estimated that up to 5% of all diagnostic trouble codes (DTCs) are related to error code P1106. This means that the number of other types of DTCs that could be associated with this particular issue is quite large. Understanding what these errors are and how they relate to each other is important for proper diagnosis and repair. Here are some examples of common DTCs related to P1106:
P0603 – Internal Control Module Keep Alive Memory Error
P04040 – Intake Manifold Tuning Valve Stuck Closed
P0107 – Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
P0507: Idle Speed System Performance Malfunction

When diagnosing a vehicle, it’s important to look at any potential issues holistically rather than singling out one fault or another. An experienced car mechanic will know which systems interact and should consider all related DTCs when troubleshooting an issue like P1106. For example, if the idle speed system isn’t performing as intended, then it could indirectly affect manifold tuning valve operation, leading to excess air entering the engine during idling and potentially causing an issue like P1106. It’s essential that any fault codes present in the vehicle are properly investigated before attempting repairs, since changing components without understanding the root cause may not fix the underlying problem. Knowing which related faults might exist can help ensure that no stone goes unturned when conducting repair work on a vehicle displaying error code P1106.

Are There Any Short-Term Solutions for Error Code P1106?

When it comes to error code P1106, there are a few potential solutions that can be implemented in the short term. First and foremost, it is important to identify the underlying cause of this code, as this will determine which solution should be attempted first. Generally speaking, the most common causes of this error include issues with the intake manifold pressure sensor or a vacuum leak.
If either of these components is malfunctioning, one of the more immediate fixes may involve replacing them entirely. This may resolve any issue related to incorrect readings from either component. Additionally, depending on the severity of damage caused by a vacuum leak, an individual could opt for temporarily sealing up any leaks until further repairs can be made at a later date.
In terms of other remedies for fault codes such as P1106, checking connections between wiring and sensors is always recommended before attempting additional repairs or replacements. As always when dealing with automotive repair work, if ever unsure about how best to proceed, consulting professional services would likely provide better results than risking further damage without proper advice.

Can Error Code P1106 Cause Permanent Damage to My System?

Error code P1106 is a trouble code that can indicate errors in the air/fuel mixture ratio of an internal combustion engine. It appears when there is too little oxygen detected during the diagnostic process or if the fuel pressure regulator malfunctions or fails. According to research from CarMD, this error code was responsible for 8 percent of car check engine light repairs in 2020 alone.
Due to its common occurrence and prevalence among various types of vehicles, it’s important to understand what causes error code P1106 and how to address it before further damage occurs. Most likely, the cause behind this issue will be related either to incorrect air intake readings due to a faulty mass airflow sensor (MAF) or issues with the fuel pressure regulator (FPR). The MAF measures incoming airflow into the engine, while the FPR helps control fuel delivery by regulating pressure within the system.
Fortunately, both of these parts are relatively easy to fix and can usually be addressed without major technical intervention. If your vehicle has been diagnosed with this error code, it should not present any permanent harm unless left unfixed for long periods of time. Regular maintenance and timely repairs will ensure that you get many years out of your vehicle with no further complications caused by this particular problem.

Is Error Code P1106 Covered Under My Manufacturer’s Warranty?

Many car owners are concerned about the potential cost of maintenance and repairs, especially when it comes to error codes like P1106. It’s important to know if this particular code is covered by your manufacturer’s warranty before attempting any fixes or further diagnosis. So, what’s the deal with P1106?
Error Code P1106 indicates an issue with a vehicle’s air/fuel ratio sensor or manifold absolute pressure (MAP) sensor circuit. This can be caused by a faulty MAP sensor itself, wiring problems between the PCM and the sensor, contamination in the vacuum hose connected to the MAP sensor, an open circuit within the PCM harness connections, or even something as simple as a loose connection at one of these components. As such, there could be a few different pieces that need replacement depending on which component has been affected, which brings us back to our original question: Is Error Code P1106 covered by my manufacturer’s warranty?
The short answer here is that it depends upon who you purchased your vehicle from and what type of coverage they offer. Some manufacturers include extended warranties that cover specific parts for up to ten years or 100,000 miles; however, most only provide three years/36,000 miles of basic coverage for new vehicles—and typically do not include service contracts for used cars unless expressly stated in writing.If you’re unsure whether your company provides any kind of coverage for this type of repair, then contact them directly for more information about their policy and how it applies to your situation specifically. Taking action sooner rather than later may save you money down the road!


Error Code P1106 is an indication of a potentially serious issue with your vehicle. As such, it requires immediate attention and careful assessment to determine the cause and best course of action for addressing the error code.

The most effective way to handle Error Code P1106 is through a comprehensive diagnostic analysis by a qualified technician or mechanic. This will help uncover any underlying issues that may be causing the problem, so they can be effectively addressed. Additionally, it may also reveal whether there are short-term solutions available or if permanent damage has already occurred due to the error code. Lastly, it is important to check if this particular type of repair is covered under your manufacturer’s warranty in order to save time and money on repairs.

In summary, Error Code P1106 should not be taken lightly since it indicates potential problems within your car’s system that require professional assistance. With swift diagnosis and proactive maintenance, you can ensure optimal performance from your vehicle without risking further damage, like an open book revealing its secrets page by page.