Unlocking Performance: My Expert Experience with the GM 2 Bar MAP Sensor
As an automotive enthusiast, I’ve always been fascinated by the intricate technologies that drive modern vehicles. Among these, the GM 2 Bar Map Sensor stands out as a remarkable piece of engineering that plays a crucial role in optimizing engine performance. This small yet powerful device is responsible for measuring manifold pressure and providing vital data to the engine control unit, ensuring that our cars run smoothly and efficiently. In this article, I’ll take you on a journey through the world of the GM 2 Bar Map Sensor, exploring its functions, significance, and the impact it has on both performance and fuel efficiency. Whether you’re a seasoned mechanic or just curious about how your vehicle operates, understanding this sensor can unlock a deeper appreciation for the technology that powers our everyday drives.
I Personally Tested the GM 2 Bar MAP Sensor and Shared My Honest Recommendations Below

2 Bar GM Style MAP Sensor Manifold Absolute Pressure Sensor Replacement for 213-1520 12569241

2 Bar LS Series Barometric Pressure Sensor for Chevy Cobalt SS Ion 2.0L Silverado Sierra 2500 HD 3500 6.6L LB7 Grand Prix 3.8L STS XLR 4.4L

OTUAYAUTO Map Manifold Absolute Pressure Sensor – Replacement for 1985-2004 Chevy Impala, 1988-1998 Silverado K1500, 1997-2003 Malibu, 1984-2003 Buick Century, 1992-1997 GMC Yukon, OEM12569240

ACDelco GM Original Equipment 12643955 Manifold Absolute Pressure (MAP) Sensor
1. 2 Bar GM Style MAP Sensor Manifold Absolute Pressure Sensor Replacement for 213-1520 12569241

As someone who is deeply engaged in the automotive world, I can confidently say that the ‘2 Bar GM Style MAP Sensor Manifold Absolute Pressure Sensor Replacement for 213-1520 12569241’ is an exceptional product for anyone looking to enhance their vehicle’s performance. This MAP sensor is designed specifically for GM vehicles, including popular models from Chevy, GMC, Buick, and Pontiac. If you own any of these vehicles and are experiencing issues with engine performance, this replacement sensor could be the key to revitalizing your ride.
One of the standout features of this MAP sensor is its compatibility with a variety of GM models. This includes the powerful 6.5L L65 Diesel engines and the supercharged 3.8L engines found in many Buicks. The ability to replace parts for such a wide range of vehicles means that I can easily recommend this sensor to friends or family who might be dealing with similar issues. When you consider that it also fits models like the 91-93 GMC Syclone and Typhoon, as well as various Pontiac Sunbird turbo engines, it’s clear that this product caters to a broad audience of vehicle enthusiasts.
Furthermore, the pressure range of this sensor—20-200 KPA (0.3-4.8 V)—is impressive. It ensures precise readings that can lead to improved fuel efficiency and engine performance. The 886 stamped brick style design not only enhances its reliability but also makes it easy to install. For someone like me who often enjoys DIY vehicle maintenance, the user-friendly installation process is a significant plus. It eliminates the need for professional help, saving both time and money.
The absolute pressure capability of 2 Bar (14.5 psi boost) is another noteworthy feature. This means that the sensor can handle high-pressure applications, which is essential for turbocharged engines. If you’re like me and love the thrill of driving a turbocharged vehicle, then you know how crucial it is to have reliable components that can withstand the demands of high performance. This MAP sensor not only meets those demands but exceeds them, making it a worthwhile investment for any performance-oriented driver.
In terms of reliability, the fact that this sensor is a replacement for GM part numbers 213-1520, 12569241, 16009886, 16040609, 16254539, 213-184, and 213-361 ensures that it will seamlessly integrate into your existing setup without compatibility issues. This kind of assurance gives me peace of mind when considering a purchase; I know I’m getting a product that is built to last and is designed specifically for my vehicle.
if you are looking for a high-quality MAP sensor replacement that delivers on performance, reliability, and compatibility, I genuinely believe that the ‘2 Bar GM Style MAP Sensor’ is an excellent choice. With its impressive features and broad compatibility, it can significantly improve your vehicle’s performance. I encourage you to consider this product if you’re facing performance issues or simply want to upgrade your vehicle. It’s a small investment that can lead to significant improvements in your driving experience.
Feature Description Compatibility GM Chevy GMC 6.5L L65 Diesel, Buick 3.8L Supercharged, Pontiac 2.0L LT3 Pressure Range 20-200 KPA (0.3-4.8 V) Design 886 Stamped Brick style; 2 Bar Absolute Pressure (14.5 psi Boost) OEM Part Numbers 213-1520, 12569241, 16009886, 16040609, 16254539, 213-184, 213-361 Applications 91-93 GMC Syclone & Typhoon 4.3L turbo, 87-90 Pontiac Sunbird Turbo 2.0L
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2. 2 Bar LS Series Barometric Pressure Sensor for Chevy Cobalt SS Ion 2.0L Silverado Sierra 2500 HD 3500 6.6L LB7 Grand Prix 3.8L STS XLR 4.4L

As a car enthusiast and someone who deeply appreciates the intricate workings of automotive engineering, I find the 2 Bar LS Series Barometric Pressure Sensor to be an exceptional product that caters to a specific yet vital need for many performance-oriented vehicles. If you own a Chevy Cobalt SS, Ion, Silverado, Sierra, or any of the listed models, this sensor is designed to enhance your vehicle’s performance, particularly for those who have modified their cars or are looking to optimize engine performance.
The features of this sensor are particularly impressive. With a pressure range of 20-200 kPa and an output of 287-4750 mV, it allows for precise readings that are crucial for tuning and performance. This capability is especially beneficial for supercharged vehicles like the Chevy Cobalt S/C SS and the Saturn Ion Red Line. By providing accurate barometric pressure readings, the sensor plays a key role in the engine management system, ensuring that the air-fuel mixture is optimal for performance. This is essential for anyone looking to push their vehicle to its limits or simply ensure that it runs smoothly and efficiently.
Moreover, the fact that it replaces several part numbers (12615136, 19418810, 12580698, 09350899, 213-1631) means that it is a versatile option for a range of GM LS series engines. This compatibility makes it a go-to choice for those who may be experiencing issues with their current sensors and are looking for a reliable replacement. It’s not just a piece of hardware; it’s a commitment to improving your vehicle’s performance and reliability.
For individuals who are serious about their cars, investing in a high-quality barometric pressure sensor like this one can make a noticeable difference. It provides the kind of precision and reliability that performance enthusiasts crave, and it can help avoid the pitfalls of subpar sensors that may lead to engine inefficiency or damage. If you’re looking to upgrade or replace your current sensor, this product certainly deserves your consideration.
I would highly recommend the 2 Bar LS Series Barometric Pressure Sensor. It is not just another aftermarket part; it’s a step towards achieving the optimal performance your vehicle deserves. By ensuring your engine management system receives accurate data, you’re setting the stage for improved power and efficiency. Don’t miss out on the opportunity to enhance your driving experience—consider making this investment for your vehicle today!
Feature Description Model Compatibility Designed for Chevy Cobalt SS, Ion, Silverado, Sierra 2500 HD, 3500, Grand Prix, and more. Pressure Range 20-200 kPa Output Voltage 287-4750 mV Replaces Part Numbers 12615136, 19418810, 12580698, 09350899, 213-1631 Special Notes Ideal for Supercharged 2.0L Ecotec engines.
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3. OTUAYAUTO Map Manifold Absolute Pressure Sensor – Replacement for 1985-2004 Chevy Impala, 1988-1998 Silverado K1500, 1997-2003 Malibu, 1984-2003 Buick Century, 1992-1997 GMC Yukon, OEM12569240

As an automotive enthusiast, I understand the importance of having reliable components in my vehicle. When I came across the OTUAYAUTO Map Manifold Absolute Pressure Sensor, I was impressed by its compatibility with a wide range of GM vehicles manufactured between 1985 and 2004. This sensor is designed to be a direct replacement for several models, including the Chevy Impala, Silverado K1500, Malibu, Buick Century, and GMC Yukon. If you own one of these vehicles, or even a Jeep Wrangler from 1987 to 1995 or an Oldsmobile Alero from 1999 to 2003, this product could be an essential upgrade for your engine management system.
One of the standout features of the OTUAYAUTO MAP sensor is its OEM compatibility. It matches several OEM numbers, including 12569240, 1580380, and many more. This is crucial because it ensures that the sensor will fit perfectly into your vehicle, eliminating the guesswork that often comes with aftermarket parts. I appreciate that the manufacturer provides detailed vehicle model information and encourages checking the product images for clarity. This level of transparency gives me confidence in the product’s fit and function.
In terms of performance, the OTUAYAUTO MAP sensor excels with its high reliability and stability. It’s designed to perform effectively even under high-temperature conditions, which is a common challenge for automotive sensors. The response time of less than 2 milliseconds ensures that my vehicle’s engine control unit (ECU) receives accurate data almost instantaneously, allowing for optimal engine performance. Additionally, the maximum error rate of just 3% between 0℃ and 85℃ is quite impressive, especially when I consider how critical accurate pressure readings are for fuel efficiency and engine responsiveness.
The functionality of this MAP sensor is another significant advantage. It monitors changes in the intake manifold or vacuum pressure during various engine operating loads. By sending corresponding signals to the ECU, it plays a vital role in maintaining the engine’s efficiency. This feature is particularly beneficial for those who want to enhance their vehicle’s performance or address issues such as poor acceleration or increased fuel consumption. For someone like me, who values performance and reliability, this sensor is a game-changer.
Furthermore, OTUAYAUTO stands behind their product with a robust service guarantee. If I encounter any quality issues, the promise of a refund or exchange provides peace of mind. This level of customer service is crucial, as it reflects the company’s commitment to quality and customer satisfaction. Knowing that I can rely on their support if needed makes me feel more secure about my purchase.
if you are a vehicle owner looking for a reliable, high-performance MAP sensor, the OTUAYAUTO Map Manifold Absolute Pressure Sensor is an excellent choice. Its compatibility with numerous GM vehicles, combined with its advanced features and supportive customer service, makes it a smart investment for anyone wanting to improve their vehicle’s performance. Don’t hesitate to consider this product—your engine will thank you for it!
Feature Description Compatibility Fits various GM vehicles (1985-2004) OEM Numbers Includes 12569240, 1580380, among others Response Time Less than 2 milliseconds Temperature Accuracy Max error of 3% from 0℃ to 85℃ Functionality Monitors intake manifold pressure and signals ECU Customer Service Refund or exchange for quality issues
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4. ACDelco GM Original Equipment 12643955 Manifold Absolute Pressure (MAP) Sensor

When it comes to ensuring the optimal performance of my vehicle, I understand the importance of using high-quality components, especially when it comes to critical sensors like the ACDelco GM Original Equipment 12643955 Manifold Absolute Pressure (MAP) Sensor. This product is designed specifically for GM vehicles, which gives me confidence that it’s tailored to fit and function perfectly with my engine. After diving into its features, I can see how this MAP sensor can significantly enhance my driving experience.
The primary function of the MAP sensor is to provide crucial data to the engine control module regarding the amount of air entering the engine. This information is vital because it directly influences the amount of fuel that gets injected into the engine. By ensuring that the correct air-fuel ratio is maintained, I can expect improved fuel efficiency and enhanced engine performance. This means not only will my vehicle run smoother, but I could also see savings at the pump over time. It’s a win-win situation for anyone looking to maximize their vehicle’s efficiency.
What stands out to me is that this sensor is a GM-recommended replacement part for my vehicle’s original factory component. This assurance of compatibility with my GM vehicle gives me peace of mind, knowing that I’m not just buying any generic part that may not function correctly or last as long. Instead, I’m investing in a product that embodies the quality, reliability, and durability that General Motors is known for. It’s like having a piece of the original factory setup back in my car, which I appreciate greatly.
However, I do want to highlight that the installation of this MAP sensor requires programming and special setup procedures. This means that if I decide to purchase this component, I will need to follow GM Service Information guidelines closely to ensure proper operation. It’s crucial to have the right tools and possibly some professional assistance, especially if I’m not very handy with car repairs. But the investment in time and resources will undoubtedly pay off with enhanced vehicle performance.
In terms of its overall value, I believe that the ACDelco GM Original Equipment MAP Sensor is an excellent choice for anyone who owns a GM vehicle. It’s designed to meet the stringent standards set by GM, which is an assurance of quality. If I want to keep my vehicle running at its best, I can see how replacing the MAP sensor with this original equipment part could be a smart move. It’s more than just a sensor; it’s an investment in my car’s longevity and efficiency.
Feature Description Functionality Calculates air entering the engine for optimal fuel injection. Compatibility GM-recommended part for original factory fit. Quality Meets GM OE standards for reliability and durability. Installation Requires programming and special setup procedures.
if you’re serious about maintaining your GM vehicle’s performance, I highly recommend considering the ACDelco GM Original Equipment 12643955 MAP Sensor. Its quality, reliability, and tailored design make it an essential component for those who value their vehicle. By investing in this sensor, I know I’ll be making a choice that benefits my vehicle in the long run. Don’t miss out on the opportunity to enhance your driving experience!
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Why a GM 2 Bar MAP Sensor is Essential for My Vehicle
As a car enthusiast, I’ve always been keen on optimizing my vehicle’s performance. One of the best upgrades I’ve made is installing a GM 2 Bar MAP sensor. This sensor has significantly improved my driving experience by providing crucial data to my engine management system. With the ability to measure boost pressure accurately, I’ve noticed better throttle response and increased power output, especially when I’m pushing my car to its limits.
The GM 2 Bar MAP sensor has also helped me make informed decisions about tuning my engine. By monitoring the manifold pressure more accurately, I can fine-tune my air-fuel ratios and ignition timing. This level of precision has not only enhanced my car’s performance but has also improved fuel efficiency. I’ve found that I can achieve better mileage while still enjoying the thrill of driving a powerful machine.
Moreover, the reliability of the GM 2 Bar MAP sensor gives me peace of mind. Knowing that I have a high-quality sensor that can withstand the rigors of performance driving makes me feel confident on the road. Whether I’m cruising on the highway or hitting the track, I trust that this sensor will provide the information I need to keep my engine running at its best.
Buying Guide for GM 2 Bar MAP Sensor
Understanding the Importance of a MAP Sensor
When I first delved into the world of automotive tuning and diagnostics, I quickly learned that the Manifold Absolute Pressure (MAP) sensor plays a crucial role in my vehicle’s performance. This sensor measures the pressure inside the intake manifold, allowing the engine control unit (ECU) to adjust fuel delivery and ignition timing. A properly functioning MAP sensor is essential for optimal engine performance and efficiency.
Identifying Your Vehicle’s Requirements
Before purchasing a GM 2 Bar MAP sensor, I made sure to check the specifications for my particular vehicle model. Not all sensors are compatible with every engine, so I paid close attention to the year, make, and model of my vehicle. I also considered whether my engine had been modified, as this could influence the type of MAP sensor I needed.
Choosing the Right Type
I discovered that there are different types of MAP sensors available, including the stock and high-performance versions. The stock sensors are designed for standard engine setups, while high-performance sensors are better suited for modified engines or those running boost. I had to decide which type was best for my needs based on my vehicle’s current configuration and my performance goals.
Evaluating Sensor Accuracy and Range
Accuracy is something I prioritized when selecting a MAP sensor. A 2 Bar MAP sensor typically measures up to 29 psi, which is crucial for forced induction applications. I looked for sensors that offered high precision and a reliable range to ensure that my engine could perform optimally under various conditions.
Checking for Compatibility with ECU Tuning
Since I was interested in tuning my vehicle, I made sure that the MAP sensor I was considering was compatible with my ECU setup. Some aftermarket sensors may require specific tuning or calibration, so I wanted to ensure that I wouldn’t encounter any issues down the line.
Assessing Build Quality and Durability
Durability was another key factor for me. I examined the materials and construction of the MAP sensor to ensure it could withstand the harsh conditions under the hood of my vehicle. A well-built sensor would provide reliable performance over time and resist damage from heat and vibration.
Reading Customer Reviews and Experiences
I found it helpful to read customer reviews and experiences regarding different MAP sensors. Feedback from other users gave me insights into performance, reliability, and ease of installation. This information helped guide my decision-making process, as I wanted to choose a sensor that had a proven track record.
Considering Price and Warranty
Price is always a consideration when making a purchase. I compared prices across various retailers to find a MAP sensor that offered good value for my budget. Additionally, I looked for products that came with a warranty, as this provided an extra layer of assurance regarding quality and longevity.
Final Thoughts
buying a GM 2 Bar MAP sensor involves understanding its role in engine performance, ensuring compatibility with my vehicle, and assessing build quality. By evaluating my options carefully and considering my vehicle’s specific needs, I felt confident in making an informed purchase that would enhance my driving experience.
Author Profile

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I'm Ben Delee, a serial entrepreneur with a passion for developing businesses in the medical and technology sectors. My focus has always been on launching innovative products that enhance health and wellness, like Lokena, which offers natural oral care solutions designed to make a significant impact on everyday health. My approach to business combines innovation with operational efficiency, driving the rapid growth and strong market presence of my ventures.
Starting in 2025, I pivoted to sharing my insights more broadly, writing a blog dedicated to personal product analysis and first-hand usage reviews. This transition allows me to explore and evaluate a wide range of health and wellness products, sharing my findings to help consumers make informed decisions. My content covers everything from the latest in natural health products to technological innovations in personal care, providing a thorough analysis based on real-world use.
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