Where is the ecm fuse located on engine block of a 1994 Oldsmobile cutlass supreme?

There isn't an ECM fuse located *on* the engine block of a 1994 Oldsmobile Cutlass Supreme, or most modern vehicles for that matter. The Engine Control Module (ECM) itself might be *near* the engine, but its power is controlled by fuses and relays located inside the fuse box, usually under the hood or inside the passenger compartment.

To find the fuse(s) related to the ECM, you'll need to:

1. Consult your owner's manual: This is the best resource. It will have a fuse box diagram showing the location and function of each fuse. Look for fuses labeled "ECM," "PCM" (Powertrain Control Module - often used interchangeably with ECM), or related terms like fuel injection or engine control.

2. Check the underhood fuse box: This is the most likely location. The fuse box is usually a plastic box with a lid, often located near the battery.

3. Check the interior fuse box: Some vehicles also have a secondary fuse box inside the passenger compartment, usually under the dashboard.

Without your owner's manual, providing the exact fuse location is impossible. The layout of fuse boxes varies between model years and even trim levels. Attempting to locate fuses without the diagram can lead to damaging other components.