X AUTOHAUX Ignition Control Module for GM 3.8L V6 — Direct-Fit Replacement with Heat-Dissipating Backplane

The X AUTOHAUX Ignition Control Module is a direct-fit replacement for GM 3.8L V6 engines that restores reliable spark control and addresses stalling, misfires, and intermittent shutdowns.

If your Buick, Chevrolet, Pontiac, or Oldsmobile with a 3.8L V6 is experiencing rough idle, sudden engine cut-outs, or inconsistent ignition coil performance, a faulty ignition control module is a common culprit. This replacement unit from X AUTOHAUX matches OEM mounting and electrical interfaces for straightforward installation and includes proven heat-dissipating materials to help extend service life.

How does this module fix stalling and misfires?

The ignition control module manages coil firing timing and voltage; when it degrades, coils may not receive consistent pulses, causing misfires or engine shutdown. Installing a fresh module restores proper electrical timing between the ECU and ignition coils so combustion events occur reliably.

• Direct replacement for original connectors and mounting points for plug-and-play installation.
• Improved backplane for heat dissipation to reduce thermal-related failures.
• Compatible with known OEM numbers (10469470, 10475225, 10494012, D1940A, D1977A).

Which vehicles and model years will this part fit?

This X AUTOHAUX module is engineered for GM cars equipped with the 3.8L V6 across multiple Buick, Chevrolet, Pontiac, and Oldsmobile platforms. Check compatibility against your VIN or current OEM part number before ordering to ensure a correct fit.

• Buick models: LaCrosse (2005–2009), Lucerne (2006–2008), LeSabre (1992–2005), Park Avenue (1991–2005), Regal (1990–2004), Riviera (1991–1999), and select early 1990s models.
• Chevrolet models: Impala (2000–2005), Monte Carlo (1998–2005), Camaro (1995–2002), Lumina (1998–1999).
• Oldsmobile and Pontiac applications: wide 1990s coverage including 88, Intrigue, LSS, 98, Silhouette, Grand Prix, Bonneville, Firebird and more.

What are the build and reliability features of this replacement?

The module uses durable components and a designed backplane that helps move heat away from sensitive electronics, lowering the risk of premature failure. Its electrical contacts and housing are manufactured to meet the fit and function expectations of the original equipment item.

• Heat-dissipating backplane to limit thermal stress on internal components.
• Sturdy housing and quality electrical terminals for dependable connectivity.
• Engineered to align with OEM electrical specifications for consistent coil control.

How simple is the installation process for a DIY mechanic?

For those comfortable with basic automotive work, the module installs using the factory mounting and plug—no splicing or modifying required. Always disconnect the battery before starting, follow torque specs, and verify clearances to avoid heat sources.

• Plug-and-play connector match to original wiring harness—no cutting needed.
• Single-module removal and replacement; typically a short repair time with basic tools.
• Recommended to inspect ignition coils and wiring boots while replacing the module.

Who is this for? Drivers and independent technicians who own or repair late-1980s through late-2000s GM vehicles with the 3.8L V6—especially Buicks, Chevrolets, Pontiacs, and Oldsmobiles—will find this X AUTOHAUX ignition control module suited for restoring dependable ignition performance. It’s intended for anyone seeking a project-friendly, OEM-number-compatible replacement (10469470, 10475225, 10494012, D1940A, D1977A) to resolve misfires, stalls, or coil-related faults without aftermarket wiring changes. Always confirm fitment with your vehicle’s VIN or current part number before purchase.