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Home >> Chevrolet >> 1998 >> Prizm Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Modules, Relays & Solenoids >> Relays >> EFI Main Relay
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EFI Main Relay

  1. EFI main relay is located in engine compartment fuse/relay box. Remove EFI main relay from fuse/relay box. Using an ohmmeter, ensure continuity exists between terminal No. 11 (Black/Orange wire) and terminal No. 12 (White/Black wire) of EFI main relay.
  2. Apply battery voltage to terminal No. 11 (Black/Orange wire), and ground terminal No. 12 (White/Black wire). Continuity should exist between terminal No. 9 (Red/White wire) and terminal No. 10 (Black wire) of EFI main relay. Replace EFI main relay if continuity is not as specified.