Buick Park Avenue PCM | Buick Park Avenue ECM | Buick Park Avenue ECU

Embrace the unparalleled performance of your Buick Park Avenue with our unrivaled selection of ECM (Engine Control Module), also known as PCM (Powertrain Control Module) or ECU (Engine Control Unit). In addition to supplying these vital components, we also specialize in their repair, ensuring your vehicle always operates at its peak. Combining over a decade of expertise with state-of-the-art technology, our ECMs are programmed to sync perfectly with your Buick Park Avenue, offering optimized fuel efficiency, power output, and emission control. Trust us to provide the reliability and performance you expect from your premium vehicle.

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  1. 1996 Buick Park Avenue ECM | PCM | ECU | VIN Programmed & Updated
    $64.00
    Merchant Return Policy
    Ari - by , Thursday
    3.3/ 5stars 1star
    plugged and played just as promised thanksFlagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_p/gm_pcm_ecm_type_p_1.jpgGL-4375
    $79.99
    Merchant Return Policy
  2. 1996 Buick Park Avenue ECM | PCM | ECU | 3.8L | VIN Programmed & Updated
    $64.00
    Merchant Return Policy
    Ari - by , Thursday
    3.3/ 5stars 1star
    The computer works perfectly. We are so happy!!Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_p/gm_pcm_ecm_type_p_1.jpgGL-4095
    $79.99
    Merchant Return Policy
  3. 1997 Buick Park Avenue ECM | PCM | ECU | 3.8L | VIN Programmed & Updated
    $64.00
    Merchant Return Policy
    Willams - by , Thursday
    3.3/ 5stars 1star
    works great, so far so good completed drive cycles and no pending codes . A+ seller buy with confedence. I definitely will again.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_p/gm_pcm_ecm_type_p_1.jpgGL-6450
    $79.99
    Merchant Return Policy
  4. 1998 Buick Park Avenue ECM | PCM | ECU | VIN Programmed & Updated
    $73.00
    Merchant Return Policy
    Ari - by , Thursday
    3.3/ 5stars 1star
    Great Service fast delivery Worked perfect. Plug&Play.Thanks.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-4478
    $90.99
    Merchant Return Policy
  5. 1998 Buick Park Avenue ECM | PCM | ECU | 3.8L | VIN Programmed & Updated
    $73.00
    Merchant Return Policy
    Pedro - by , Thursday
    3.3/ 5stars 1star
    Great Service fast delivery Worked perfect. Plug&Play.Thanks.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-3374
    $90.99
    Merchant Return Policy
  6. 1999 Buick Park Avenue ECM | PCM | ECU | VIN Programmed & Updated
    $183.00
    Merchant Return Policy
    Harry - by , Thursday
    3.3/ 5stars 1star
    plugged and played just as promised thanksFlagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-4545
    $226.99
    Merchant Return Policy
  7. 1999 Buick Park Avenue ECM | PCM | ECU | 3.8L | VIN Programmed & Updated
    $183.00
    Merchant Return Policy
    Juan - by , Thursday
    3.3/ 5stars 1star
    works great, so far so good completed drive cycles and no pending codes . A+ seller buy with confedence. I definitely will again.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-3445
    $226.99
    Merchant Return Policy
  8. 2000 Buick Park Avenue ECM | PCM | ECU | VIN Programmed & Updated
    $183.00
    Merchant Return Policy
    Luis - by , Thursday
    3.3/ 5stars 1star
    works great, so far so good completed drive cycles and no pending codes . A+ seller buy with confedence. I definitely will again.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-4609
    $226.99
    Merchant Return Policy
  9. 2000 Buick Park Avenue ECM | PCM | ECU | 3.8L | VIN Programmed & Updated
    $183.00
    Merchant Return Policy
    Luis - by , Thursday
    3.3/ 5stars 1star
    PCM ARRIVED SAME AS FACTORY PART NUMBER AND IT WAS ALREADY PROGRAMMED TO VEHICLE. EASY PROCESS. GOOD COMMUNICATION. NO ISSUES.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-3529
    $226.99
    Merchant Return Policy
  10. 2001 Buick Park Avenue ECM | PCM | ECU | VIN Programmed & Updated
    $136.00
    Merchant Return Policy
    Luis - by , Thursday
    3.3/ 5stars 1star
    plugged and played just as promised thanksFlagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-2472
    $168.99
    Merchant Return Policy
  11. 2001 Buick Park Avenue ECM | PCM | ECU | 3.8L | VIN Programmed & Updated
    $136.00
    Merchant Return Policy
    Ari - by , Thursday
    3.3/ 5stars 1star
    plugged and played just as promised thanksFlagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-1469
    $168.99
    Merchant Return Policy
  12. 2002 Buick Park Avenue ECM | PCM | ECU | VIN Programmed & Updated
    $136.00
    Merchant Return Policy
    Rated 3.3/5 based on 3044 customer reviews
    Willams - by , Thursday
    3.3/ 5stars 1star
    Great product. A pleasure to do business with.Flagship One, Inc
    Buickhttps://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-2473
    $168.99
    Merchant Return Policy
  13. 2002 Buick Park Avenue ECM | PCM | ECU | 3.8L | VIN Programmed & Updated
    $136.00
    Merchant Return Policy
    Harry - by , Thursday
    3.3/ 5stars 1star
    Great product. A pleasure to do business with.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-1470
    $168.99
    Merchant Return Policy
  14. 2003 Buick Park Avenue ECM | PCM | ECU | VIN Programmed & Updated
    $136.00
    Merchant Return Policy
    Harry - by , Thursday
    3.3/ 5stars 1star
    it's good quality. fast shipping my car sounds great now.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-4762
    $168.99
    Merchant Return Policy
  15. 2003 Buick Park Avenue ECM | PCM | ECU | 3.8L | VIN Programmed & Updated
    $136.00
    Merchant Return Policy
    Harry - by , Thursday
    3.3/ 5stars 1star
    Fast shipping great product thank youFlagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-3766
    $168.99
    Merchant Return Policy
  16. 2004 Buick Park Avenue ECM | PCM | ECU | VIN Programmed & Updated
    $136.00
    Merchant Return Policy
    Luis - by , Thursday
    3.3/ 5stars 1star
    Thank you for an easy and pleasant transaction. Product arrived as expected.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-4807
    $168.99
    Merchant Return Policy
  17. 2004 Buick Park Avenue ECM | PCM | ECU | 3.8L | VIN Programmed & Updated
    $136.00
    Merchant Return Policy
    Juan - by , Thursday
    3.3/ 5stars 1star
    The computer works perfectly. We are so happy!!Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-3847
    $168.99
    Merchant Return Policy
  18. 2005 Buick Park Avenue ECM | PCM | ECU | VIN Programmed & Updated
    $136.00
    Merchant Return Policy
    Willams - by , Thursday
    3.3/ 5stars 1star
    Thank you for an easy and pleasant transaction. Product arrived as expected.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-4857
    $168.99
    Merchant Return Policy
  19. 2005 Buick Park Avenue ECM | PCM | ECU | 3.8L | VIN Programmed & Updated
    $136.00
    Merchant Return Policy
    Juan - by , Thursday
    3.3/ 5stars 1star
    The computer works perfectly. We are so happy!!Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpgGL-3927
    $168.99
    Merchant Return Policy
  20. 16211539 | 1996 Buick Park Avenue 3.8L PCM Engine Computer ECM ECU Programmed Plug&Play
    $64.00
    Merchant Return Policy
    Ari - by , Tuesday
    3.3/ 5stars 1star
    PCM ARRIVED SAME AS FACTORY PART NUMBER AND IT WAS ALREADY PROGRAMMED TO VEHICLE. EASY PROCESS. GOOD COMMUNICATION. NO ISSUES.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_p/gm_pcm_ecm_type_p_1.jpg16211539
    $79.99
    Merchant Return Policy
  21. 16231853 | 1996 Buick Park Avenue 3.8L PCM Engine Computer ECM ECU Programmed Plug&Play
    $64.00
    Merchant Return Policy
    Harry - by , Tuesday
    3.3/ 5stars 1star
    plugged and played just as promised thanksFlagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_p/gm_pcm_ecm_type_p_1.jpg16231853
    $79.99
    Merchant Return Policy
  22. 16227797 | 1997 Buick Park Avenue 3.8L PCM Engine Computer ECM ECU Programmed Plug&Play | 16218060
    $64.00
    Merchant Return Policy
    Rated 3.3/5 based on 3044 customer reviews
    Luis - by , Tuesday
    3.3/ 5stars 1star
    PCM ARRIVED SAME AS FACTORY PART NUMBER AND IT WAS ALREADY PROGRAMMED TO VEHICLE. EASY PROCESS. GOOD COMMUNICATION. NO ISSUES.Flagship One, Inc
    Buickhttps://www.fs1inc.com/media/product/image/gm/gm_type_p/gm_pcm_ecm_type_p_1.jpg16227797
    $79.99
    Merchant Return Policy
  23. 16236757 | 1998 Buick Park Avenue 3.8L PCM Engine Computer ECM ECU Programmed Plug&Play | 16200870
    $73.00
    Merchant Return Policy
    Willams - by , Tuesday
    3.3/ 5stars 1star
    excellent seller to work with, excellent packing and thank you for the super fast delivery.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpg16236757
    $90.99
    Merchant Return Policy
  24. 09361735 | 1999 Buick Park Avenue 3.8L PCM Engine Computer ECM ECU Programmed Plug&Play | 09357440
    $183.00
    Merchant Return Policy
    Ari - by , Tuesday
    3.3/ 5stars 1star
    excellent seller to work with, excellent packing and thank you for the super fast delivery.Flagship One, Inc
    https://www.fs1inc.com/media/product/image/gm/gm_type_a/gm_pcm_ecm_type_a_1.jpg9361735
    $226.99
    Merchant Return Policy
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Buick Park Avenue Engine Computers

If your Buick Park Avenue isn't running as it should, a new Engine Computer may be just what you need. Flagship One has a wide selection of Engine Computers specifically designed for your Buick Park Avenue, so you're sure to find the perfect one for your needs. Using the right Powertrain Control Module ensures that your Buick Park Avenue runs smoothly and produces fewer emissions. Here are 8 frequently asked questions and answers to help you understand the importance of this automobile component.

1. What does an Engine Computer do?

An Engine Computer, or Powertrain Control Module (PCM), is responsible for regulating the performance of your Buick Park Avenue's engine. It monitors and controls many different aspects of engine function, including fuel delivery, ignition timing, and emissions.

2. Why is it important to use the correct engine computer?

Using the wrong engine computer can lead to decreased performance, poor fuel economy, and even damage to your Buick Park Avenue's engine. The PCM is specifically calibrated for your vehicle's engine and components, so it is essential to use the correct one to ensure optimal performance..

3. Can you get any year computer for your Buick Park Avenue?

Buick installs a new engine computer in each car model every year. The computer is designed to take information from sensors that are unique to each year and model of Buick Park Avenue. If you buy and install a computer for a different year, it may not work as well or may cause costly malfunctions. Luckily, engine computers for many years & models of Buick Park Avenue are readily availble from Flagship One.

4. How will a new engine computer improve the performance of my Buick Park Avenue?

If you install a new control unit in your Buick Park Avenue, you can expect a variety of improvements. This can include better fuel delivery and ignition timing, resulting in higher gas efficiency. Additionally, a new Buick Park Avenue PCM can help decrease emissions, making your vehicle compliant with environmental regulations.

5. What are some symptoms of a powertrain control module malfunction?

There are many symptoms of a faulty pcm, including poor fuel economy, the check engine light comes on, decreased performance, the engine stalls or misfires, rough idling, and increased emissions. If you experience any of these problems, it's likely that your engine computer needs to be replaced.

6. Is an ECU and PCM the same thing?

PCM (Powertrain Control Module) - The PCM manages both the engine and transmission. It ensures that both the engine and transmission are working correctly.

ECU (Engine Control Unit) / ECM (Engine Control Module) - The control unit manages the engine only. It oversees all of the sensors, actuators, fuel injection, and ignition associated with the engine.

7. What is a programmed ECM?

A programmed ECM is an engine computer that has been pre-loaded with the specific calibration for your Buick Park Avenue. This can save you time and money, as you won't have to take your Buick to a dealership or mechanic to have the computer flashed (a process of programming the computer to match your Buick's engine). Flagship One offers pre-programmed engine control modules for a wide variety of Buick vehicles, including some units that are plug&play.

8. Are the Vehicle Identification Number (VIN) and ECM related?

The VIN on your Park Avenue is related to the specific ECM that your car needs. Buick will not release an engine computer without checking the VIN compatibility. The Engine Computers from Flagship One are all programmed to your Park Avenue's year and model, so you don't have to worry about finding the correct electronic control module. Simply enter your VIN when ordering, and we'll do the rest. We also offer PCM repair for select models.