Where is your fuel pump relay on 1985 Pontiac fiero-2m4 se 5 speed?

The 1985 Pontiac Fiero fuel pump relay location isn't consistently documented in a single, easily accessible place across all sources. There's a good chance it's in the underhood fuse/relay box, but the exact location within that box varies by build and even minor model variations.

To find it, you'll need to:

1. Consult your owner's manual: If you still have the original owner's manual, it should have a fuse/relay box diagram.

2. Look in the underhood fuse/relay box: Carefully examine the box. Many relays are clearly labeled, but some might not be. You may need to consult a wiring diagram (see below).

3. Use a wiring diagram: A wiring diagram specific to your 1985 Pontiac Fiero 2M4 SE 5-speed is your best bet. You can often find these online through Fiero forums (like fieroforum.com), or via a Haynes or Chilton repair manual for your vehicle. The diagram will show you the relay's location and often its circuit number. Look for a relay associated with the fuel pump circuit.

4. Use a multimeter (advanced): If you're comfortable with basic electrical work, you could use a multimeter to trace the fuel pump circuit. This involves finding the fuel pump wire and following it back to the relay. Caution: Always disconnect the battery's negative terminal before doing any electrical work.

Without a specific wiring diagram for your exact model year and trim, pinpointing the relay's location is difficult. Online Fiero forums dedicated to your specific model are your best resource to find someone who has encountered this same situation and can provide specific advice.