I would need a bit more information. Is is a 4 cylinder, or 6? I'm going to assume it's a 6. Do you see three ignition coils on top of the engine? Those coils are sitting on top of the ignition module. You will need a 7mm wrench to loosen the retaining screw for the module pigtail, and a 7/32 socket to remove the retaining screws for the coil. Once the coils are removed, you should find that the module comes off the mounting bracket with the final coil.
Where remote module in a 98 buick regal
To replace the ignition control module on a 1991 Buick Regal with a 3.1L engine, first disconnect the negative battery cable to prevent any electrical shorts. Remove the ignition coil assembly, which is typically bolted onto the module, followed by disconnecting the electrical connectors from the ignition control module. After removing the mounting screws, take out the old module and install the new one in its place, securing it with screws and reconnecting the electrical connections before reattaching the ignition coil assembly and reconnecting the battery. Finally, start the vehicle to ensure proper installation and function.
http://www.automotivehelper.com/topic1054152.htm or Goole "ignition switch replacement 2001 regal"
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