WARNING: This page is about a different car, the 1995 Pontiac Bonneville, 1995 Oldsmobile Eighty-Eight, and 1995 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: 3.8L (VIN K, L & 1) PCM Wiring Diagram (Bonneville, Eighty Eight & LeSabre - 1 Of 3)
Fig 2: 3.8L (VIN K, L & 1) PCM Wiring Diagram (Bonneville, Eighty Eight & LeSabre - 2 Of 3)
Fig 3: 3.8L (VIN K, L & 1) PCM Wiring Diagram (Bonneville, Eighty Eight & LeSabre - 3 Of 3)