LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Geo >> 1991 >> Storm GSi, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Relays >> EFI Main Relay
April 5, 2026: LEMON Manuals is launched! Read the announcement.

EFI Main Relay

NOTE: The EFI main relay may be referred to as the main relay.
  1. The EFI main relay is located in fuse/relay block on left side of engine compartment, near the battery. Remove EFI main relay from fuse/relay block.
  2. Using ohmmeter, ensure continuity exists between Black and Black/Yellow wire terminals of EFI main relay. Apply battery voltage to Black/Yellow wire terminal and ground Black wire terminal. Continuity should exist between Red/White and Red/Green wire terminals of relay. Replace EFI main relay if continuity is not as specified.
scientia non olet · About LEMON Manuals