To find it, you'll need to:
1. Consult your owner's manual: This is the first and best place to look. It might have a diagram showing the location of relays or fuse boxes.
2. Locate the relay box(es): Mitsubishi vehicles of that era often had multiple relay boxes; one under the hood and possibly one inside the car's cabin. Check both locations.
3. Use a wiring diagram: A wiring diagram specific to your 1995 Eagle Talon ESI with the 2.0L engine is crucial. This diagram will show you which relay is for the fuel pump and where it is located within the relay box(es). You can find these diagrams online through various auto parts websites (often requiring a vehicle-specific search) or through repair manuals.
4. Look for markings: Even without a diagram, carefully examine the relays in the box(es). Some relays may have markings that indicate their function, though this is not always the case. The relay itself might be labeled or the relay's position in the box might be indicated on a diagram printed on the box's cover.
Caution: Working with automotive electrical systems can be dangerous. If you're not comfortable working with car wiring, it's best to take your vehicle to a qualified mechanic.