2008 Grand Prix ECM 19210737 | Programmed to Your VIN | Engine Computer

Restore Your Grand Prix’s Performance and Reliability

If you’re dealing with a frustrating Check Engine Light, intermittent stalling, or a no-start condition in your 2008 Pontiac Grand Prix, a failing Engine Control Module (ECM) is a very likely culprit. As a technician with over two decades of experience, I’ve seen how a faulty engine computer can create a cascade of baffling issues. This isn’t just a replacement part; it’s the brain of your vehicle’s engine management system, and getting it right is critical. This module, part number 19210737, is a direct-fit, reliable solution designed to restore your vehicle’s factory performance and get you back on the road with confidence.

The Critical Advantage: VIN-Specific Programming Included

The biggest hurdle in replacing a modern ECM is the programming. An unprogrammed module simply won’t work. It needs to be coded specifically to your car’s Vehicle Identification Number (VIN) to communicate with the other modules, control the engine and transmission correctly, and manage the anti-theft system. We handle this for you. Before we ship your 2008 Grand Prix ECM, our technicians will flash it with the latest GM-certified software using your unique VIN. This saves you a costly trip to the dealership, eliminates the need for expensive scan tools, and ensures a true plug-and-play installation.

Is Your Grand Prix Showing These Signs?

A failing engine computer can manifest in numerous ways. If you’re experiencing any of the following, it’s time to consider your ECM:

• ✔ Persistent Check Engine Light (CEL)
• ✔ Engine stalling or shutting off while driving
• ✔ Unexplained drops in fuel economy
• ✔ Rough idling or engine misfires
• ✔ Harsh or erratic automatic transmission shifting
• ✔ The vehicle won’t start, but the battery and starter are good
• ✔ Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606, or U0100

A Straightforward Guide to Installation

For the 2008 Grand Prix, the ECM is conveniently located, making this a very manageable job for a DIY enthusiast. You can have your car running smoothly again in under an hour.

1. Safety First: Always disconnect the negative terminal from your car’s battery and wait about 10 minutes to ensure all modules are powered down.
2. Locate the Module: Open the hood. The ECM is housed within the lower part of the air cleaner assembly on the driver’s side of the engine bay.
3. Access the ECM: You will need to unclip and remove the top of the air cleaner box and the air filter to gain access to the computer.
4. Disconnect: Carefully release the locking tabs on the electrical connectors and pull them straight out from the module. Never force them.
5. Swap the Modules: Unbolt the old ECM from its mounting bracket. Secure the new, pre-programmed ECM in its place.
6. Reconnect: Firmly plug the electrical connectors back into the new ECM until they click into place. Reassemble the air cleaner box.
7. Final Steps: Reconnect the negative battery terminal. The vehicle may require a security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. Consult your owner’s manual for the specific procedure for your vehicle.

Verified Vehicle Compatibility

This ECM is a direct replacement for service number 19210737 and is also interchangeable with part numbers 12590032, 12602044, 12603530, 12605843, 12607096, and 12630457. While this is the correct 2008 Grand Prix ECM, it also fits a wide range of other GM vehicles. Please verify the part number on your original module or contact us with your VIN to confirm perfect fitment for models such as:

• ✔ 2008-2009 Buick Allure / LaCrosse (5.3L)
• ✔ 2007-2008 Chevrolet Trailblazer (5.3L, 6.0L)
• ✔ 2008 Chevrolet Impala (5.3L)
• ✔ 2007-2008 GMC Envoy (5.3L)
• ✔ 2008 Pontiac G6 (3.6L)
• ✔ 2007-2008 Saab 9-7x (5.3L, 6.0L)
• ✔ …and many more. Refer to the full fitment list to confirm compatibility.